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Old 05-16-2022, 10:53 PM   #7
HO455
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Join Date: Feb 2016
Location: Portland Oregon
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Re: Will stock GM HEI work on an original Tachometer?

Quote:
Originally Posted by Palf70Step View Post
The one on mine is not accurate. Have tried all the tricks mentioned to make them compatible, but the RPMs change and get off by over 1000 RPMs the higher you go in the RPM range. Works perfect on a non-HEI distributor, just not on the HEI.
I had similar experiences on my Burban.
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