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ray_mcavoy · 12-18-2018, 06:53 PM

Connecting the overdrive kickdown "ground-out" wire to the HEI "tach" terminal is the same as connecting it to the negative side of the coil (as was originally done with the points ignition).

As I mentioned earlier, I have heard that can potentially damage the module, but that could very well be one of those old wive's tales.

12-18-2018, 06:53 PM	#20
ray_mcavoy Registered User Join Date: Nov 2009 Location: Sherman, ME Posts: 2,354	Re: 3 speed overdrive with an HEI distributor Connecting the overdrive kickdown "ground-out" wire to the HEI "tach" terminal is the same as connecting it to the negative side of the coil (as was originally done with the points ignition). As I mentioned earlier, I have heard that can potentially damage the module, but that could very well be one of those old wive's tales.