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08-13-2024, 05:55 PM
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Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,707
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Re: GMC 305 v6 Holley 500 swap woes
Those uncalibrated pencils are usually off 10 degrees or more.
The only way is with a piston stop. But first check your timing. Make sure to plug off all the vacuum ports when doing timing. Factory timing is 5 degrees before top dead centre. https://www.summitracing.com/parts/cca-4795 Last edited by geezer#99; 08-13-2024 at 06:02 PM. |
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