10-29-2010, 10:26 AM
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Senior Club Cobra Member
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Join Date: Feb 2007
Cobra Make, Engine: KMP 539, a Ton of Aluminum
Posts: 9,591
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Not Ranked
Quote:
Originally Posted by Bernica
I am running just under 11:1 comp in a Shelby aluminum block with Shelby aluminum heads and Stage II porting, 482ci. I'm here in CA, and the 76 station near my house still sells 100 octane pump race gas (unleaded). It's not cheap. Currently around $8.75/gal. But once I filled my Cobra with that stuff, all was good. Running around 35 deg timing. No knocks, no pings. Just an empty wallet after a 42 gal fillup!!
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So you're telling us that your CSX runs great with 11:1 compression and race gas. Cool.  |