Thread: Octane
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Old 03-14-2011, 04:44 AM
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Join Date: Dec 2001
Location: Castalia, Oh
Cobra Make, Engine: EM cobra, 450 inch sbc running a best ET of 9.14..so far..ALL MOTOR...approx 800 horse.............ERA with 482 FE..All Aluminum Engine
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Aluminum heads run cooler than iron heads, thus you can usually run one point more compression. Looking at it in reverse, I guess you could say they require less octane.
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