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Old 09-12-2020, 06:57 PM   #10
Jack Shaft
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Join Date: Dec 2019
Posts: 1,196
Default Re: Hi Compression Heads

Engine performance is a balance,fuel air compression and exhaust,they all work together to yield best results.Feed enough fuel with proper cam,mechanical advance timing and exhaust,the 6 to 1 head will out perform a 7 to 1 head with an A cam, stock carb and manual advance timing..
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