Tunnel Ram, Big Block Gas Miser?- Here's Our Plan
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- เผยแพร่เมื่อ 5 ก.ย. 2024
- The 600 CFM vacuum secondary Holley is one of the most common and street friendly carbs on the market. But, when you double them up on a dual quad or Tunnel Ram intake manifold, their factory calibrations are way off to the rich side. Here's how we are modifying these carbs to achieve maximum gas mileage as Slaghammer gets closer to her 2000 mile round trip on Power Tour.
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I dont believe uncle Tony said anything bad about me at all in this video regarding the mower carb deal. I think a lot of folks like to pit us against each other online - we don't always agree, but nobody ever does on everything.
We're on the same team here - eliminating the black box magic of carburetors and making classic cars attainable to the common man.
You dont have to say anything to show a lot.
Very well said man!
Any chance you'll let someone neutral run an entire tank through that Maverick? Find a respected youtuber or auto journalist and let them drive a tank through it while you ride along. People who make these claims never seem to want to let the magic out into the real world which makes it seem like they're all fakes. This is your chance to prove you're not one of the fakes. Maybe Uncle Tony or Steve Magnante would do the honors? I bet a gofundme would raise all your expenses plus some fun money for your roadtrip in about a day. Step up! Your turn at bat!
@@jonathangehman4005 I'll probably run it on power tour - if you watch the video you will see that hypermiling was not my intent in the slightest, it just happened. I dont want to be personally wrapped up in all that Tom foolery - I originally did it because folks said a lawn mower carb couldn't run a car engine.
If someone wants to copy me, by all means - probably be hard to replicate my electronics that bridged the gap though since I'm a programmer by day.
Nothing goes without a trade off either - although it wasn't a road hazard, I also probably only had 100hp at my disposal vs the normal just over 300 that engine puts out.
Not my intent at all Luke. Just pointing out that was an achievement
Well like it or not Luke did a hell of a job. Don't dismiss it.
He is an excellent practical joker too
No doubt , he did a great job on that !
Jeez, Uncle didn't dismiss anything. Uncle's going to work on getting a hot rod to get good mileage. Chill, folks.
100%
Exactly. Luke did something really cool. Should get its own video.
Hey Uncle Tony. I had a tunnel ram with 600 Holley carbs. 69 Swinger 340 with 510 solid lift cam, 4 speed, 4.56 posi. It was my daily driver back in 1981. It was a lot of fun.
God smiles every time someone installs a tunnel ram.
Tony, the holes you pointed out on top of the main body are idle air bleeds, not idle feed holes. The idle feed restrictor holes are in the metering block.
watch out .. he may delete your post .. check out his cam timing video..
Tony I think your not giving Luke enough credit. Luke is a guy much like yourself just from a younger generation. Very talented guy and he did the lawnmower thing just to prove a point. Which to me is exactly your style. Using your knowledge and skills to beat the normal way of thinking and to learn new things
Tonys got years of experience. Luke is a genius.
Agree, Cody. 100%
UTG has a huge ego, thats why he wont really give Luke his due credit.
What Luke did was fun and really interesting to watch. But, it was just an experiment. Eventually it isn’t much fun having an engine that can make a few hundred horsepower limited to 40 or so hp.
For a real street setup you’d have to figure out a way to go from a small single barrel like the lawnmower carb to something like a regular 4 barrel. At the end of the day it’s a hard transition to make and have something that runs good everywhere, makes good power, and gets good economy.
@@NBSV1 definately a good experiment. You could replicate it by bearly touching the throttle, just enough to get you going and you might have a similar result. Moral of the story, stick with a smaller carb, keep your foot out of it.
Didn't think I'd see a UTG video start with a offhanded reference to ThunderHead289. While super-duper fuel economy tricks aren't really covered here unless they're being disproven, ThunderHead's videos do a solid job of explaining how and why the lawn mower carb works on a Ford 302 the way it does, with some good carburetor theory to boot, which is always useful. While his specific lawn mower carb setup might not be feasible for most people to build, it could help get the ball rolling for some smart people to make something cheap and simple enough for the layman to build and install in a pinch.
Dude from Iowa is a prick
It was pretty cool project. My '70 Mav, 200 CI straight six got an easy 30 MPG with my foot to the floor all the time. Same with my '63 Fairlane 221 CI V-8 .
All stock 5.0 Foxbodies could pull down 35 MPG on the freeway, As did my built 5.0 '94 Mustang.
Volumetric efficiency and tall final gear, that's all.
I watched those Thunderhead vids, they are quite clever and interesting. Between him and Tony I'm inpired to do a 2 chainsaw carbs on a tunnel ram project!!
How bout a kit?
Yeah disappointing to hear unc Tony hating on him
Lawnmower carb Ford Maverick with a 302, 40 plus MPG@ 70 MPH.
Was pretty cool. Just sayin.
How long to get there? 70mph needs like 33-40 hp depending on the drag.
Really easiest way with most older cars to get better mileage is to just drive 50(theres a sweet spot for most cars and its around there, manuals used to have the number listed for the car at least older alfas).
I forget how fast robot cantina got the insight with a predator up to but it was more than 60 anyway. They're putting a supercharger on it now(with fuel injection), for no particular good reason but its a fun project.
Really open source fuel injections kinda cheap if you were doing high mpg restriction experiments. You could also datalog exactly how much gas you're using
Getting the vacuum advance dialed in right almost doubled the gas mileage on my single four-barrel, engine ran cooler too.
That is key!
just wire it tightly shut! there I gave you the best MPG🤣
A lot of mpg can be found in the ignition timing and vacuum advance.
I'm running SBF 306 12 to 1 CR 600 lift comp cam with Offenhuser Tunnel Ram on my 62 Falcon daily driver, I purchased from Holley Tunnel Ram carburetors that have been setup at Holley factory for Tunnel Ram application. I went to the bigger accelerator pump on both carburetors and larger jets to get rid of the lean stumble when driving around the city at low rpm.
No vacuum secondaries mechanical secondaries
No chokes, Holley doesn't install chokes or vacuum secondaries on Tunnel Ram carburetors.
Car runs great 10mpg in town 15mph on highway. .3 55 9 inch posi rear . Manual transmission.
Driving almost 2 years now no problems.
A whole lot of people will miss that bit...... "Manual Transmission". and stick that same combo on an automatic and wonder why it's only 10mpg on the hwy.
Automatics cost you fuel economy, and there's no way around that.
What are the carb # numbers ?
Luke from Thunderhead289 (the lawnmower carb guy) doesn't deserve being shrugged off in an intro, you are both a wealth of hands-on knowledge.
luke is the man.
Uncle wasn't throwing shade on the lawnmower man. He gets it, understands what the guy's up to, but goes on to say that that's not what his channel is about. Uncle's going to try to get decent mileage with a hot, hugely carbureted car. Don't read more into what Uncle said than what he said.
@@rcnelson he was, or he would not have mentioned it
@@rcnelson considering UTG did like 3 videos back to back about MPG 🙄 Luke did an incredible job but UTGs ego gets in the way.
@@rcnelson There was definitely an awning or two in there. Also i doubt he would have mentioned it at the start in the tone he did.
Everytime you discuss carburetors I always remember this guy back in the 70's in Newport, Tennessee that only did ONE thing. .....tuned carburetors. His lot always had 8 or 10 cars waiting in line. Carburetor work is almost an art form. Good Luck Tony......let's shoot for 18mpg????
As a guy who had an epiphany and became a magician at tuning carbs I agree, it's almost an art. When I was still working I had customers lined up exactly like you describe the man in Tennessee did, when word gets out you can fix carb issues you get customers stacked up outside! Lol
I find in my area, most of the cars have multiple underlying issues for driveability. They think it's the carb of course, but i check compression, ignition timing with advance and for vacuum leaks. I usually find 1 or all 3 of them have issues which seem like carb tuning problems. Address everything under the carb and ignition first to make sure you are not trying to tune a broken engine. Then mess with the carb
price of gas keeps going up u will have 2 lawnmower carbs on that tunnel
ram
Or,the tunnel ram on his lawn mower!
Lol awesome
Thats some funny shit right there!
Love me some Thunderhead 289! I watch all the gearhead channels! The lawnmower carb vid was fun. Seen similar stuff done with inline 6 motors used for water pumps, log splitters, rock crushers, back then when I was a kid we had our own version of Joe Biden. His name was Jimmy Carter. We were all broke and we used what we had on hand. We did not have the luxury of u tube videos. Gonna see a lot more innovation as things get harder and more difficult, despite the advances of 'diversity, stunning and brave', and my personal favorite 'We had to wait for backup'.
Let's Go Brandon!
I've been saying the same thing through all this man! People act as if this is "doomsday" just like it was under JC. Farms around here collapsed because of it. Russian embargos, the Mid-East-Petro Dollar establishment, Rampant EPA restrictions (I can't drive 55), fuel shortages due to the MASSIVE price hike (gas stations refused to fill their tanks at those prices or they too would go out of business)....... and the cars went to crap because it all.
We made it through all that, and those that know how to do it will thrive while others will faulter.
Are you sure you got it right?? The hole at the top you indicated is really the air corrector, not the idle! if you wanna modifiy the Idle and Transfer slot it should be the two holes at the bottom one of which you indicated. Check it with Andy....
andy's truck is gonna get a lot more crazy with the new motor. both you and he have shattered the old myths i believed about tunnel rams.
Engine masters and richard holdener have done several tests on tunnel rams and theyve been proven to increase both hp as well as tq. Tuning is where it gets tricky and its where most people fail.
I saw a car magazine test once where the tunnel ram got the best driveabilty and mileage of several intake and carb combinations. And it was on a small, mild engine. Even the magazine guys were pleasantly surprised.
I don't remember if it was a single carb on the tunnel ram, or two. And I don't remember how big the passages were on the 8 tubes.
When you think about it, Chrysler's long ram intakes on early 60's cars gave a torquey responsive drive.
That lawnmower carb video series, all he did was improve the BSFC of the car. It gets better miles for the same reason a 2.3l mustang uses more gas at the same speed as a 5.0 mustang. Brake Specific Fuel Consumption. That explains 90 plus percent of it. The car is under-powered now too.
Less than a week away from firing up my dual 1406 355 tunnel ram 4 speed camaro. Love these videos
With your setup I always said it's not the miles per gallon that count. It's the smiles per mile that we're after.
You just don't want the smiles to disappear when you approach a gas station....
@@johncollins5552 gave up smiling at the pumps a while back. My truck takes around $800 a day rolling down the highway. My 66 Imperial is no economy car but something bout a classic really don't care what fuel costs, we're happy.
Can we call Andy Uncle Andy now? Smart carb technician! 😁🤣
EDIT: It makes total sense what Andy is recommending. 😁
The drilled holes in the restrictor plugs must have as close to 90 degree corners as is possible, no chamfers or radii. All calibrations are measured on a square edged 90 degree corner, shoulder, edge ... whatever you want to call it ... anything else throws the calibration off by unknown amounts so Tony is being very smart by starting out with the smallest recommended sizes.
Smiles per gal. Tunnel ram gives smiles. 😁
HOWdy U-T-G,
Thanks for the HOLLEY Tunnel Tuning HINTS
COOP
...
Uncle Tony's a smart guy. Always start small when it comes to holes. You can drill a hole bigger, but you can't drill a hole smaller!
It's also much easier to start small and work your way up than it is to start big, then weld the hole small!
Also remember, you don't buy a drill because you want a drill, you buy a drill because you need a hole. Now, this has nothing to do with what you were saying, but I thought I'd throw it out there.
Thanks uncle tony. You are striving for better fuel economy with dual quads and just watched peg trying to burn more 1202 between blowing tires while towing a rickshaw. Look forward to seeing a result
So I'm not alone ☺️
Fuck yeah bud!
You know, there's plenty of room in between them Holleys for a lawnmower carb. Use a progressive linkage and no idle circuits in the Holleys. 🤣
😆
Don't tell anyone, but a lawnmower carb is one way to cheat the IMCA Stock Car rules.... now where can I hide this thing.... 🤗
Again, excellent educational video. UT needs to apply at the local community college as a professor of auto mechanics. 👍
Had a 340 tunnel ram years ago had to drill the secondary's throttle plates 1/16 a little hole in each one 660 DP made a world of difference.
It's kinda funny how nowadays messing with carburetors is seen as the wizardry and EFI is easy mode. To do all the stuff to make these carbs happy I just tell my Holley EFI I want it to idle at 800rpm, 14 to 1, and it does it, it even varies the timing to smooth out and regulate the idle further and I never picked up a wrench, just tapped numbers into a laptop. I find that kinda scary and ironic coming from carburetors myself.
We get close to 18 MPG in the 68 Ford Galaxie with 302 & dual quads on top a 6-71 blower . I can see this working !
What's cranking compression ?
@@cammontreuil7509 140 PSI on the 302 in the Galaxie 500 . th-cam.com/video/kGxHs3NBP4w/w-d-xo.html
great video Tony! I average 18mpg in my 1994 Ford F-150 4x4 5.0 5 speed. I’m 37 so i drive a lot slower then I used to plus I like to keep my tires at 40psi too which helps a lot that and shifting below 2500 rpms.!
Oh yeah there's a lot more to mileage than just carburation (as UTG has discussed many times), and the most proven thing in better mileage is actually the transmission. Being able to control the shift without the loss of torque & HP in an Automatic is key to it all. It's why the rest of the world is predominately Manual Transmissions, because they have dealt with high fuel costs for a lot longer than we have.
@@BareRoseGarage yeah exactly i got 22mpg on a trip to califonia in my 94 f150 4x4 5.0 5 speed with a 3.55 gearing. I love that I can shift with the torque band and not wind out the v8. I only use what power i need and I can get some really respectable mileage!
Can we see a video of modifying the metering blocks, like you did for theses carb (the drilling and the tapping and where to get and what parts you used)?
Holley's are the best carb filing the main body is a must. Another trick is to drill a hole in each primary throttle plate to maintain a proper idle without adjusting idle screw too much. Large duration cams suffer from that. Doing that will prevent the engine from drawing fuel from the transition circuit at idle because the throttle plate are opened up to far which if it does will cause a bog or lack of fuel until it starts to draw fuel from the main jets.
Something's.. know exactly what They Are and there place In the universe..
Bring on the CFM !!
🤘👀🇺🇲
andy is a good dude...& knows his shit ...cant wait to here it run..& please tell us ALL the numbers on the tune...great video...keep them coming....shout out to Andy @ unity moter garage....thanks U.T.
I'm building a 318 and want to run a tunnel ram intake on it. They seem to be hard to find used snd for a reasonable price. Anyway instead of Holley carbs I plan on using Edelbrock carbs and running progressive linkage. That means I need more of an open plenum tunnel ram instead of the pinched center to make it work right.
Really good advice thank you Tony.
Doing a 2x4 on a 383 with Eddy 500s. Really got to lean them out. went from a stock 94 jet in the secondarys to a 70 and leaned out the primarys with a rod. change from a 65x52 to a 65x57. still need to play a bit more but it runs well with a 1 to 1 not progressive linkage. @ 4500 ft I can lean it more and see how it dose on altitude changes. Maybe a change from a 86 to a 83 in front and fiddle with rods also. Holleys are easier to tune and less $$ IMOP. Oh yeah 63 Belvedere wagon 383 push button 323s. need a convertor 2.
Thanks Tony
Waiting on part two and more!!
There is always a sweet spot where you can hit a good cruising rpm and high vacuum reading. That I always went for to get the best mpg.
Don't forget, Andy got David Vizard who wrote the book on performance with economy lol. Get em uncle Tony
Great video.!! Important info!! Thank you!!
If you are restricting the Idle Air Bleeds it's because it is idling LEAN not rich. You're restricting the AIR in the emulsion and richening the mixture. Dual Vac Sec carbs idle LEAN on a 2x4 setup because the vacuum signal is now split between 8 venturis not 4 and the signal is very low causing the engine to idle lean, not rich. If you had an A/F gauge you'd see that. It can run rich if you start turning in the idle speed screws, thus opening the throttle blades past the transfer slots and drawing too much fuel from the intermediate circuit and bypassing the idle circuit.
A lot of people said I'd get worse MPG with a modified engine. I've had cars get better mileage once modified and tuned. My current slant six is a fitech 4 barrel, Aussie speed hurricane intake, aussiespeed headers, automatic long bed d150. OCG 1947 cam and 9.5:1 CR. 1.7/1.44 valves. Even with the locked out distributor at 16 degrees I got 19.7 mpg on the interstate. Usually around 13-14 in town hauling stuff.
This type of attention to details is what a great deal of projects lack, all too often there is a tendency to overlook the subtleties of fuel and ignition systems, understanding how things actually work is a great deal of the equation.
Learn how to make things work properly stock before you attempt modifications.
Meanwhile just an observation:
Mopar Al is quite a mechanic, I can see why you get along so well with him Tony, the Power Tour with "Slag Hammer" should be a hoot and a half, that car is so weird but loveable, only an old time/type gear head will appreciate it.
Uncle Tony do you have to drill out the top brass restriction plugs first for this to work I am doing a tunnel ram setup just like you be awesome if you can do this live
@Rich Rishel I have and yet I still get lost lol might try to get a hold of Andy and pay him for a tune up
I also have a few videos on those circuits, theyre a little old now but still relevant
Since you're restricting the Idle Air Bleeds (making them smaller than original) you can leave the stock ones above the venturis alone
If it runs as good as it looks it will be a winner for sure!
How many cards you want.... Yes!
Could the vibrations loosen up those tapped fuel restrictor ? Will you be using some kind of way to eliminate that possibility ? 1000 miles of rumbling big block v8 is quite a ride to get there. High RPM Racing a couple of times then another 1000 miles back home. Im just asking cause we had a 68 Charger R/T with 440ci 4bbl and riding at the track with 3.91 gears got the RPM to steady 3500+ range and i noticed snapping the trottle at the track started going wrong suddenly. The choke screw on the 750 DP Holley had loosen from vibrations and the choke closed down. By the time i got to my racer parking spot, the oil was full of gaz. I know the choke is external part but i wouldnt want SlagHammer to have an issue down the road. Take it more as a reminder. Im sure you will be already extra precautious about those restrictors or anything else.
Another great instructive video about and for the greatest community on TH-cam.
Theres no where for them to go. They get installed snug and are kept in their place between the main body and metering block. I have a whole video on that.
CLASSIC CAR CULTURE LEADER UTG!!!
Back in the day, the family C-body 383 wagon on a 2-barrel got 18-20 highway tuned well with a 3.23 SureGrip. My money says if you can't beat 20 dragging Slaghammer around on Power Tour, it's running too rich. I bet 22 is achievable, but the grump lump'll cost a bit.
Uncle tone do this same video but with a edelbrock dual quad set up tuneup
Every body wants wor... To interprep tonys mention of mower carbs as an insult is trouble making 101... All the best for the future you create...
This might sound crazy but I’ve done all of what your talking about ever think about using an ball valve on 3/8 pvc port to introducing air for idle instead of drilling the throttle blades same thing different path
You really shouldnt be drilling out your throttle blades. If you NEED more air at idle(like if you had a huge cam), you should upgrade to a 4 corner idle carb or at least a larger carb to give you more area around the throttle blades.
Yeh that was my point using a valve on the carb pvc port to let a little extra in rather than drilling the blades demon has the idle easy air jet in the main body to adjust air rather than drilling as well
Super interesting restrictor tech on those carbs. Thanks for sharing!
Wow that thing is high. Thats a power tower 🥳
Love you Tony, I really can't weight to see this baby put the front end in the air....
I used to run a 383 and I absolutely love the rod ratio that a B block Mopar has, that'll really turn some awesome RPM's!!!
It would be cool if you could replicate the tiny carb thing to see if it actually yields those results for you
it wont with out the computer controled iacv
He also cant because it requires a lot of custom parts that he doesnt know how to make
@@NightWrencher ...and it makes 50 hp. you got duped.
@@oldblueaccord2629 well, no. I knew exactly what was going to happen with the experiment. An engine needs the required air and fuel to run at its max performance. Reducing the air will also reduce the output. I know that engine is probably a dog but did he get 40 mpg in a V8? Yes. Does it run "well"? Probably not but I dont think that was the point. Not worth the effort to replicate but also something very impressive. Now when we say a smaller carb can help with MPG, we have something that proves it tonthe extreme.
@@NightWrencher Did he get 40mpg with a V8? Until the experiment is reproduced successfully by a nuetral observer the safe bet is no. It's simple for him to prove he's right if he wants to
Thanks for keeping this stuff alive, it's a dying art!
Maybe I'm missing something. If there are two carbs, why are they running rich? You'd think the vacuum at idle would be half on each carb compared to what it would be with a single carb. So you'd have less fuel getting sucked in from each carb to offset the fact that there are twice as many carbs.
Edelbrock, I believe, but it could have been another company, made an inline dual quad complete setup that came with the intake and two specially selected carbs. But I never knew how they differed from standard carb meant for single carb intakes.
Andy gets gangster ass mileage out of a tunnel ram
geez the more you know the more you need to know. Uncle Tony to the rescue. Anyone who's got this guys number should have it insured.
You make them yourself. Get 6-32 and 8-32 brass set screws from McMaster Carr and drill the required holes in them.
I won't be satisfied until you build a 50mpg big block!
Luke❤
Nice one man. Dual quads, in style.
That Engine looks so BadAss and you definitely can get the best bang for your budget. And all of us. 👍😎
Aw shit! Hes got the official tuning screwdriver made by craftsman! I use the exact same one! Lol
And here I'm just about getting 15mpg in a 4k lbs car with a bone stock 302, 570cfm vacuum Holley, overdrive trans and a 3.08 rear gear...
If you change out the short rods to 5.4 inch and use a piston with a shorter compression distance you will get over the 15 mpg mark easy.
I've done it many times. Don't change anything else.
The Casper Tune! It will be funny if you beat him with his own tricks...lol..
Good info right here.
I've got one of those on my 65 mustang's bored 302.
Cool project. I think some people don't realize that it takes a certain amount of power to move a certain amount of weight, keep the engine running and fight aero and rolling resistance. It doesn't matter if you do it with a lawn mower engine or a twin turbo 900 cubic inch allow racing engine....it will still need hypothetically 25 hp to roll 60 mph. the only thing we can change is how efficiently we make the required 25 hp and wether or not the engine will be damaged from running overly lean.
There is a math formula for picking carburetor size size of engine RPM divided by 3456 or whatever the formula is can someone explain to me what this formula is about because I see everyone putting big carburetors on I'm just asking I don't know thanks
Rule of thumb for street cars. mostly based on 70s and older heads (IMHO). The newer heads flow so much better. As you start to hot rod, it kinda is there as a starting point. Ex 289 ford is calculated at ~400 cfm but people put 600, 700, & 750 cfm carbs on them...for more power.
makes more power at wide open throttle.
I see there are the same holes on the other side of the plate. Restrictors in those too??
this is my kind of mpg i get about 6 to 8 mpg on a good day with my stroke 454 as long as i baby it. i have 4:10 gears with a 02xx 400r turbo in a 68 chevy pu weight is 4240 lb. with no one in it
I asked several questions in the comments of the lawnmower carb video. Never got any answers... And I wasn't being rude either. I guess the questions I asked didn't deserve answers. I really don't believe it could be anything but a dog. Why even have a V8 at that point?
Big youtubers dont usually respond to comments. I wouldnt take it personally, but they get 100s of comments every day and can only get so much done.
I challenged him to go 0-60 in under 30 seconds and Id buy a T shirt.......never gonna happen.
@@oldblueaccord2629 yeah, I'm not even sure if thats possible on that little carb
@@NightWrencher oh no, I'm not taking it personal. I just found it odd that some questions got answers and some didn't.
@@oldblueaccord2629 in the video he twits the throttle on the carb pretty damn close to wide open, if not wide open, and the thing revs extremely slow. Then he cuts to a couple burn outs.... No way that carb with that hesitant of a rev is doing that. Just my opinion.
UT I don’t know how you could say “that’s not what we do here”…. You literally did that for about a half dozen episodes a few months back (tried MPG booster ideas)… Luke actually accomplished the goal, I don’t think he should be brushed off. At the end of the day what he did as the CORE OF HOT RODDING… taking parts that don’t belong together, and making them not only work but exceed expectations.
Exactly right. Thats what I was thinking. Im not sure if it was pure jealousy or ego but that was really rude. He should have just stayed quiet or said something else.
My Dream Engine is a 1955 DeSoto Hemi and I want to make a dual quad tunnel ram for it.
Start with the dual quad hemi intake 1821319-1 .
Get 4 2" aluminum 4 hole AFB spacers , and 8 lengths of aluminum tubing in the height of your choice . Bolt two of the spacers to the manifold , and insert the tubes , and TIG weld them in .
Then set the other w spacers on top , and TIG weld them in .
Viola , a long ram intake the same way the Ramchargers did it in the 1950s !
See if anything can be done to get Austin a suregrip or some kind of locking rear in his car. Please.
Hay Tony. What happened to the rust removal electric tank? Have a safe memorial day...
It worked out well👍
A couple of months ago I swapped my 750 QJ for an 800 QJ. Tuned it as if it were a 750. It likes it fat, it can do no lean. And of course it gets piss poor mileage. I readjusted the float. I'm hoping that helps. If you got any further advice, that'd be cool.
Uncle Tony
your the man thanks for sharing you knowledge
You were watching the thunder head 289.
Everyone should have a old friend named rocky 👍
$4 per gallon I wish. In Canada it's over 2 dollars per liter. That's like 8 dollars a gallon for gasoline.
2000 miles at 16 mpg is 125 gallons at 5.00 / gallon is 625.00. I think you’ll find many people willing to buy ya a gallon of gas so ….send it!
West coast guy’s jab…😎
Learned something again. Damn
Where do you get the restrictors, or how to make them ,would be a good video
If you're going to make two carburetors work like one, what's the point, why not just use one carburetor?
Because he is only talking about the primaries, the secondary’s would be doubled. That’s where the power comes in.
Buddy you would think so...I was thinking the same thing myself, im confused really, why drill a perfectly good 4b carb just to block a smaller hole, id use a dremmel and a small bolt...lol
Power
Because, a single 4 barrel intake simply isn't the same as a dual quad intake. There's more to this than net air and fuel flow.
Getting exciting now !!!
If you started off with a pair of 390 cfm carbs would all that still be necessary
Good point. I run a tunnel wedge 427 on the street. I bought the car with two Holley 800's. Ran fine. Switched to two marine 600's. Ran better. Maybe switching to smaller carbs may even be better.
Cool Tony I learned something today 😀
The v-twin lawn tractor engines have 2bbl carburetors.
I suggested that to the guy with the maverick there were also larger single barrel down draft carbs for big kohlers
How would you do the same thing with a carter/Edelbrock
I always believed that tunnel rams were meant for Big Blocks ??😮
Unfortunately this reminds me a lot of how Freiberger and Co. treated Tony regarding the reverse piston issue.
I don't think they even mentioned his name, besides Tony didn't dream this up and it is just a theory anyway.
jeez I have my chevy 350 with a mild cam tuned with a 600cfm edelbrock, on my 1 ton gmc truck, I get 12-14 mpg
I have to say that is city driving towing a boat or loads a lot.