Re: Timing for a 351C

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I have a '71 mustang with the 351C 4V quench heads. Stock timing for this engine is also 6 deg. It is a stock engine and I advanced it to 12 deg. and it loved it. You want more advance if you have open chamber heads. Depending on the year of your engine, '69-'71 clevelands have prety beefy cams and higher compression. These engines typically like around 10 -15 degrees of intial advance. '72 and on clevelands have a 2 deg. retard on the cam and comp. ratios in the 8's and these guys like less advance.



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