Vacuum Adv Distributor Swap And Tach Help
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Joined: Oct 2018
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Car: '84 Camaro Z28 H.O.
Engine: L69 305 H.O.
Transmission: 700r4
Vacuum Adv Distributor Swap And Tach Help
Hi. I have a '84 Camaro Z28 with a stock L69 305 HO engine. The distributor's advance is computer controlled and I'm removing the ECM so I want to swap the distributor. My plan Is to take an old HEI vacuum advance one off of an engine from my collection of SBCs from 70s & 80s GM vehicles I have laying around. I don't really know anything about tachs so my question is do I need a specific kind of distributor if I wanna keep my factory tach working in my stock gauges? I know the tach gets its reading from the distributor, but can I just use any random HEI and make it work? Do I need a specific type of distributor to plug into the tach wire? If so, Is it possible to modify one to be able to use a tach if I don't have one?
Joined: Dec 2004
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Vacuum Adv Distributor Swap And Tach Help
You can use any hei coil in cap. There is a terminal in the side of the cap marked tach .
Joined: Sep 2005
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Car: Yes
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Re: Vacuum Adv Distributor Swap And Tach Help
You don't have to "do" anything. Just plug it in. the older HEI wires up exactly the same as the one your car came with.
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