HEI and Tach

[Classics Fan]

I recently came across and acquired a 1966 LeMans. It’s a bit unique in that it has the factory 326 HO, 4-speed, no console, Saf-T-Trak, manual steering and brakes, and rallye performance dash gauges with tach. Sort of a baby GTO wannabe. I bought it for a project this winter. It’s a legit solid survivor that should be a really nice car after I put who-knows-how-many hours of wrenching and polishing in it.

My question: one of the first things I will be doing is replacing the original distributor with HEI. I’ve never done this on a car with a factory tach. Can anyone tell me where it gets its signal, and what if anything I need to consider in order for it to function with HEI? I looked in the 1966 Tempest shop manual but didn’t see the answer.

TIA!

 

[melsg5]

Did you look at the negative post of the original ignition coil?
How many wires?
Why HEI?
Keep the original distributor and install a Pertronix points eliminator and aftermarket coil.

 

[Classics Fan]

Do tell me more, I’m not knowledgeable about that as an option.

 

[melsg5]

Do tell me more, I’m not knowledgeable about that as an option.

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[92 Sunbird LE]

This should help............. HEI Conversion

Doug in P.R.

 

[Classics Fan]

Thanks for the help with my continuing education, guys. I’ve worked on and installed HEI and Ford DuraSpark. I ordered a Pertronix Ignitor III kit and coil from Summit this morning and am looking forward to playing with it!