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05-25-2020, 05:19 PM
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Registered User
 
Join Date: Jan 2007
Location: Columbus, Ohio
Posts: 4,338
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Easiest way to wire up factory tach?
I'd rather not spend ~$25 to buy a tach harness if I can help it.
Checking to see if this is the correct/easiest way to wire up a tach in my 70 GMC Jimmy. Single wire run to the HEI tach post through the firewall and the other 2 (12V and ground) wires stay local like in the pics below that I found on the forum from older posts. Thanks. |
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