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Old 09-20-2019, 10:12 AM   #11
Ol' Ron
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Join Date: May 2010
Location: Chester Vt
Posts: 8,879
Default Re: timing advance how much is to much

Sounds like one of the old stock car/ drag engines. 13.8 is alittle lean for a full power run, but 18/20 would be close. I had a fixed advance of 17 in the stock car, where it ran bett on the track. However, it made more hP around 20 on a chassis dyno. Gota go with what works
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