04-16-2026, 01:56 PM

JLMounce

Ultimate Warrior

Join Date: Sep 2005

Location: Greeley, Colorado

Posts: 4,540

Quote:

Originally Posted by 73ta

My tach was off quite a bit, 500 rpm at higher rpm's. Got a new upgraded tach board that has a calibration potentiometer on it. Much better now. Tach board guy said factory is + or - 10% on accuracy. With the new board you can adjust it to get it much closer.

Link to the tach board?

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-Jason
1969 Pontiac Firebird

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