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66 389 LOW COMPRESSION
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11-28-2022, 01:45 AM
Zooguy
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Join Date: May 2022
Posts: 121
66 389 LOW COMPRESSION
Have a 1966 Pontiac 389 and from doing some research looks like the compression ratio is something like 10.5 and I was wondering what cylinder heads I should be looking out for to give me the lowest compression possible.
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