Tach reading 1970LS6 - The Supercar Registry

06-21-2020, 08:00 PM

martyb

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Join Date: Mar 2007

Location: Chandler, AZ

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Tach reading 1970LS6

Pretty sure my factory tach is reading high. 1970 LS6, M22, 4:10 rear end. 4th gear at 50mph tach is reading about 3100rpm, thinking that’s about 800rpm or more on the high side. Factory sized tires as well. Anyone seen this before, and if so what’s involved in making it accurate?

Thanks all

Marty

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1970 LS6 Chevelle
1998 Viper GTS

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