How-to Guide: Wire Tachometer for the GM HEI Ignitions
Sponsored LinksThis is a picture of Tachometer wiring connection for installation to the General Motor (GM) HEI ignitions.
Optionally, you may wire to a switched 12V source with an in line fuse. The diagrams is the typical installation for connecting the tacho to your GM HEI ignitions.
Please see how-to make switch adjusment if you want to operate the tacho for operation on 4 or 6 cylinder engines. (source: autometer.com)
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