I'm 66 years old and a lifelong hot rodder/drag racer. Thought I knew my share about Holley carbs until I saw your previous videos . You have an uncommon ability to explain in layman terms. And then you just disappeared leaving us all hanging ! Where you been,in prison ?....thanks for coming back.
No not in prison, but it's good to be back, thanks for the kind words, you know I am 64 and I still get excited about learning knew things , just an old hot rodder that loves racing, thanks for watching.
Thanks Tim for the cool words , you know we have seen a lot through our years, I always loved to learn something new, and thats all I ever think about, people told me I would grow out of it , if I live to be 100 , I won't never change,.take care Tim.
Thank you thank you!! For sharing this old technology!! I love holleys!! Love them!! It’s neat to learn more than what I know about them. I like that they have the least moving parts the better especially compared to the Edelbrock junk carbs.
Thanks Randy for all your videos and explaining things the way you do. Do you have any videos on how to make something like a Holley Ultra XP 850cfm carb and modify it to make more CFM like 1100cfm or so? How do you go about doing that? I have a pair of short deck BBC 565cid's for offshore marine hi-perf boating...top end should see about 5800=6000rpm. I already bought the Ultra XP 850cfm carbs, but I think they're going to be a bit too small for my application and I know they can be modified to increase the CFM---I do not know much about Holley carbs, but I am learning quickly---Thank you, again. Mark
@@holleycarbshowtosadvice40y90 Thanks for responding, Randy, BBC 565cid, Comp Cams, solid/mechanical roller 246*/252* @.050" lift, .657" lift/.651" on 114-LSA ("Low Shock" design) Advertised Duration is 276*/282*, Intakes are single-plane Weiand "Track Warrior" 4150 square bore flange, heads are AFR 315cc, cnc ported with a little more work done to the exhaust ports, Compression ratio will be about 9.25-9.6:1, top RPM should be around 5800-6000rpm depending on the prop sizes, but I will normally cruise around 3500-4000rpm. We boat on Lake Michigan. Any recommendations you could give/suggest would greatly help. Mark
Brian the 3 circuit holleys are designed for strictly racing, they are not designed for fuel mileage, the added intermediate circuit richens the mixture on a race engine, giving you a good throttle response when your on the converter launching off the starting line.the fuel flows through a tube just under the throttle plates. Hope this helps.
I have a 2008 production 4160 looking to upgrade the boosters do you have a part number that would take the guesswork out for me to install on the 4160
I've never seen a downleg annular booster, I know they make performance step down boosters, I have used straight leg annular boosters on alcohol and gas carbs. all I can tell you is they work great. I believe bolaws performance offers the annular boosters in 8,12 and 16 hole. Hope this helps.
I think your confused about annular boosters, annular boosters are named annular because of the way they feed the fuel in a circular manner around the booster. Hope this helps.
I think you might do better with 750 main bodies and 850 throttle plates, which have to be modified but work well. You could try it with 750 throttle plates and the 850 bodies , but I don't think that will work like you want , but who knows with a supercharger.
I picked up a 3310-2 today, noticed when I got home one of the front boosters melted. What caused that to happen? Also where can I get a replacement? Holley isn't carrying it anymore.
Try BLP racing products, melted boosters can be caused by several problems , firing order incorrect, exhaust blockage , extreme overheating , intake valve failure , flat tappet intake cam lobe wiped , and the list goes on.
man you have the best videos, im building a street strip small block with a tunnel ram . i have a pair of 1850 carbs can i epoxy the jets on the secondary plate and drill and tap it for screw in jets ?
Mike I would drill and plug them with a 6/32 blank and seal it with blue loctite that will seal off the jet holes, you can epoxy it. But the sealed plugs are one and done, and yes you can drill and install jets. Remember tunnel rams need big accelerator pump nozzles to keep them from back fireing and man they are cool, nothing looks better than a tunnel ram sticking out of the hood. Let me know how it turns out. Have a good one.
@@holleycarbshowtosadvice40y90 im planning on a dyno run in april if all goes well i will send ya some pix. im building a 421 inch sbc going in a 68 firebird
Lmao! Were back and gonna hit it hard, buddy! We will have another video up around 6PM EST and will be posting at least one video a day from here on out, excluding Sunday's!
@@holleycarbshowtosadvice40y90 Sounds amazing!! I need help tuning a low vacuum cammed small block to idle and behave a bit on the street. And air bleed tuning tips!! Thanks man 🍻🍻
@@TheSaxon25 let me know your carburetor specs , like double pumper. , cfm , 2 or 4 corner idle mixture screws , idle air bleed size and any mods, thanks for watching.
@@randallcribb668 I have a first gen demon 750 vacuum secondaries on a single Plane on a 350 .060 over 10.5:1 compression. I modded the IFRs but set them to stock .033. Idle bleeds are 59 pri and 63 sec (stock no mods). Hi speeds are 39s. Butterfly's are drilled all four sides less than an 1/8". Running isky z35 cam. Gets about 8 in of vacuum at idle around 900 rpm and 18° initial timing. Problems is that I can get the idle clean w/ good off idle response, great cruise but WOT hits a lean spot I can't figure out (AFR reads 12.5-13 on idle). Part throttle is good - AFR dips to maybe 11 steadies to 12.5. No load cruise is nice around 13.5 AFR. When I go WOT from stop, at the top of first gear I see my gauge shoot lean - up to 15/16 AFR. When I let off the throttle for a second and pump squirter I get enough fuel to patch me through to the secondaries. I've tried a bunch of different power valves. On a 5.5 right now. The 6.5 doesn't help. My trajectory is looking at drilling the PV restrictions or air high speed bleeds. Any advice/observations/or admonishment is welcome 🍻
@@TheSaxon25 try changing your high speed air bleeds first going two sizes down at a time , if that does not help you could change power valve restrictor to a larger size. It would be better to use high speed bleeds
Great to have you back. Looking forward to the videos!
Thanks .
No kidding!
Thanks
Thanks again Randy always a pleasure
Thanks for watching
Glad you back at it!!
Thanks
I'm 66 years old and a lifelong hot rodder/drag racer. Thought I knew my share about Holley carbs until I saw your previous videos . You have an uncommon ability to explain in layman terms. And then you just disappeared leaving us all hanging ! Where you been,in prison ?....thanks for coming back.
No not in prison, but it's good to be back, thanks for the kind words, you know I am 64 and I still get excited about learning knew things , just an old hot rodder that loves racing, thanks for watching.
Thanks Tim for the cool words , you know we have seen a lot through our years, I always loved to learn something new, and thats all I ever think about, people told me I would grow out of it , if I live to be 100 , I won't never change,.take care Tim.
Thank you for taking the time to make these videos. Seems to me that carburetors are making a comeback. Thumbed up and subbed.
Thank you
Thank you thank you!! For sharing this old technology!! I love holleys!! Love them!! It’s neat to learn more than what I know about them. I like that they have the least moving parts the better especially compared to the Edelbrock junk carbs.
Holleys are my favorite too.thanks for watching
good stuff
I appreciate it.
Great explanation ON boosters👍
Thanks
How do you alter the metering block to create more emulsion in the metering block?
I'll do a video on the emulsion circuit soon.
Thanks Randy for all your videos and explaining things the way you do. Do you have any videos on how to make something like a Holley Ultra XP 850cfm carb and modify it to make more CFM like 1100cfm or so? How do you go about doing that? I have a pair of short deck BBC 565cid's for offshore marine hi-perf boating...top end should see about 5800=6000rpm. I already bought the Ultra XP 850cfm carbs, but I think they're going to be a bit too small for my application and I know they can be modified to increase the CFM---I do not know much about Holley carbs, but I am learning quickly---Thank you, again. Mark
If you could give me some specs. on the engine like intake manifold., compression , cam , and cylinder heads that would help.
@@holleycarbshowtosadvice40y90 Thanks for responding, Randy, BBC 565cid, Comp Cams, solid/mechanical roller 246*/252* @.050" lift, .657" lift/.651" on 114-LSA ("Low Shock" design) Advertised Duration is 276*/282*, Intakes are single-plane Weiand "Track Warrior" 4150 square bore flange, heads are AFR 315cc, cnc ported with a little more work done to the exhaust ports, Compression ratio will be about 9.25-9.6:1, top RPM should be around 5800-6000rpm depending on the prop sizes, but I will normally cruise around 3500-4000rpm. We boat on Lake Michigan. Any recommendations you could give/suggest would greatly help. Mark
Why do some carburetors have a third circuit ?
Brian the 3 circuit holleys are designed for strictly racing, they are not designed for fuel mileage, the added intermediate circuit richens the mixture on a race engine, giving you a good throttle response when your on the converter launching off the starting line.the fuel flows through a tube just under the throttle plates. Hope this helps.
I have a 2008 production 4160 looking to upgrade the boosters do you have a part number that would take the guesswork out for me to install on the 4160
I order my boosters from BLP racing products, annular boosters are a good choice for bottom end power and mid range.
have you tried Down Leg Annular Booster or have any info on them?
I've never seen a downleg annular booster, I know they make performance step down boosters, I have used straight leg annular boosters on alcohol and gas carbs. all I can tell you is they work great. I believe bolaws performance offers the annular boosters in 8,12 and 16 hole. Hope this helps.
@@holleycarbshowtosadvice40y90 Allcarbs has them
I think your confused about annular boosters, annular boosters are named annular because of the way they feed the fuel in a circular manner around the booster. Hope this helps.
I have 2 850 holleys on a 555 cid bbc With 6 71 suprcharger would like to put 750 throttle plates on them will it work??
I think you might do better with 750 main bodies and 850 throttle plates, which have to be modified but work well. You could try it with 750 throttle plates and the 850 bodies , but I don't think that will work like you want , but who knows with a supercharger.
I picked up a 3310-2 today, noticed when I got home one of the front boosters melted. What caused that to happen? Also where can I get a replacement? Holley isn't carrying it anymore.
Try BLP racing products, melted boosters can be caused by several problems , firing order incorrect, exhaust blockage , extreme overheating , intake valve failure , flat tappet intake cam lobe wiped , and the list goes on.
man you have the best videos, im building a street strip small block with a tunnel ram . i have a pair of 1850 carbs can i epoxy the jets on the secondary plate and drill and tap it for screw in jets ?
Mike I would drill and plug them with a 6/32 blank and seal it with blue loctite that will seal off the jet holes, you can epoxy it. But the sealed plugs are one and done, and yes you can drill and install jets. Remember tunnel rams need big accelerator pump nozzles to keep them from back fireing and man they are cool, nothing looks better than a tunnel ram sticking out of the hood. Let me know how it turns out. Have a good one.
@@holleycarbshowtosadvice40y90 im planning on a dyno run in april if all goes well i will send ya some pix. im building a 421 inch sbc going in a 68 firebird
Sounds like a good.sbc.
Hey any chance of any info on the Holley 4500
Just dont have one right now hopefully soon , but if I can answer a question for you , let me know.
What carburetor model is this? Thanks
Its a 4180 holley designed by holley for ford. Great carburetor.
on a progressive 2bbl I have 2 different booster sizes, does the smaller one go on the primary side? ones labeled a 509 and the other is a 555.
I'm not sure what carb your talking about but if the fuel inlet hole is larger on one of the boosters it should be the secondary. Hope this helps.
How much do you charge for this service?
Edgar I'm not doing builds or mods right now, I have family health problems, sorry . But I will be happy to answer any questions you have.
I love your videos can’t find your contact information can you give us up
Bigblockchevyman1121@gmail.com
👍
Thanks for watching JD.
Question answered.
10/4
Analure boosters
Thanks
Where the H you been?! Why are you teasing us with this forbidden knowledge?! It's been like 3 years. Dad? Where are you??!??
Lmao! Were back and gonna hit it hard, buddy! We will have another video up around 6PM EST and will be posting at least one video a day from here on out, excluding Sunday's!
@@holleycarbshowtosadvice40y90 Sounds amazing!! I need help tuning a low vacuum cammed small block to idle and behave a bit on the street. And air bleed tuning tips!! Thanks man 🍻🍻
@@TheSaxon25 let me know your carburetor specs , like double pumper. , cfm , 2 or 4 corner idle mixture screws , idle air bleed size and any mods, thanks for watching.
@@randallcribb668 I have a first gen demon 750 vacuum secondaries on a single Plane on a 350 .060 over 10.5:1 compression. I modded the IFRs but set them to stock .033. Idle bleeds are 59 pri and 63 sec (stock no mods). Hi speeds are 39s. Butterfly's are drilled all four sides less than an 1/8". Running isky z35 cam. Gets about 8 in of vacuum at idle around 900 rpm and 18° initial timing. Problems is that I can get the idle clean w/ good off idle response, great cruise but WOT hits a lean spot I can't figure out (AFR reads 12.5-13 on idle). Part throttle is good - AFR dips to maybe 11 steadies to 12.5. No load cruise is nice around 13.5 AFR. When I go WOT from stop, at the top of first gear I see my gauge shoot lean - up to 15/16 AFR. When I let off the throttle for a second and pump squirter I get enough fuel to patch me through to the secondaries. I've tried a bunch of different power valves. On a 5.5 right now. The 6.5 doesn't help. My trajectory is looking at drilling the PV restrictions or air high speed bleeds. Any advice/observations/or admonishment is welcome 🍻
@@TheSaxon25 try changing your high speed air bleeds first going two sizes down at a time , if that does not help you could change power valve restrictor to a larger size. It would be better to use high speed bleeds