GM HEI 5-7 pin timing control...

General engine tech -- Drag Racing to Circle Track

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Schurkey
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Post by Schurkey »

dieselgeek wrote:I am unfamiliar with the older modules, this is good info. Do the versions you speak of, include their own advance curve within the module then? or were they used with mechanical/vac advance distributors?
If you want a module with it's own advance curve, use the marine module that fits an '87-'95 Chevrolet HEI with separate coil and small diameter distributor. You might still find the entire distributor/coil/harness kit sold as the Delco Voyager Marine Ignition System. The BBC and SBC kits are the same except for the coil bracket.

The marine module has an electronic version of centrifugal advance, but NO provision for vacuum advance. You'll need some wiring harness bits 'n' pieces as well.
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