
11-08-2009, 06:15 AM
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CC Member
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Join Date: Nov 2001
Location: Windham,,
Me
Cobra Make, Engine:
Posts: 1,590
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Not Ranked
When building my motor back in the early 90's, 91 octane pump gas was the option,so settled on 9.5:1 cr and run as much timing as the fuel would let me.It is the only option we have without needing racing fuel.
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