Join Date: Aug 1998
Location: Waldorf Md. USA
Re: Tic Toc Tach reading double rpm's any adjustments
You did not mention anything about your ignition system, but if it is anything other than stock, there could be something there sending a "double" signal and causing the tach to read wrong. If you hook up a tune up type dwell meter / tach does it read correctly ?
Advanced Automotive Machine
1971 Chevelle "Heavy Chevy" original owner
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