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Blazer1970 · 11-03-2005, 06:03 PM

If you are using a stock tach, there is a 99% chance that it is incorrect. They all read high with age. It is not unusual for them to be off by several hundred rpm.

11-03-2005, 06:03 PM	#12
Blazer1970 Registered User Join Date: Dec 1999 Location: Old Mission, MI, USA Posts: 2,510	Re: My motor RPMs don't seem right If you are using a stock tach, there is a 99% chance that it is incorrect. They all read high with age. It is not unusual for them to be off by several hundred rpm. __________________ Tim