How to test mock connect an aftermarket tachometer on an old classic car - testing

[@Gilbertbrotherscycles]

Thanks man for taking the time to make and post the vid.... y'all have a good one

[@HorsepowerHouse]

@@Gilbertbrotherscycles The Thanks Button awaits you

[@calumrife]

Thank you! I snagged one out of an old motorhome that I want to put in my 63 F100. Cheers!

[@HorsepowerHouse]

The Thanks button awaits you

[@Thunderbird1968]

Is it possible to have a positive ground coil on a negative ground car? I’m confused because on my car the negative post on the coil is receiving the wires from the ignition and the positive side is feeding the distributor… in this case do I want to hook up my tach to the positive side of the coil?

[@garageassembled4701]

Great looking test. Very simple!

[@phonetape]

Thanks for your help with this.