Reply to "Octane vs Compression Ratio..."

jderyke (Guest)

What octane your motor will need depends on the compression ratio, which heads you use (closed chamber are more efficient), the cam you select and the carb you run as well as the timing and a host of other minor things. I wouldn't begin to guess from a list of parts what octane the thing would like.

5/13/0111:24 PM

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