Quote:
Originally posted by Excaliber
I mean 11 to 1 is WAY up there!
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Yes and no. I have Edelbrock RPM Performer cylinder heads. these are an alum head and the general rule of thumb is that you can run 1 point higher with alum heads than you can with iron. The car was originally 10.4:1. Now I know that the gas is different between then and now but I can get 94 over here at any pump, 98 in Germany (and 106 at the track) so I am ok.