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#1
05-02-2021, 02:49 PM
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Open chamber and closed chamber heads require different amounts of timing advance. Also piston dome size and shape will have an affect on it. What works on mine might not work on yours. 35 degrees might be a good place to start. Be sure to check your timing marks with a piston stop to be sure that they are accurate.
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Freddie 1969 Camaro RS/SS396 (427) 4 speed 
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firstgenaddict (05-03-2021) | ||
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