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Old 11-06-2004, 11:15 PM
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lluciano77 lluciano77 is offline
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At 10.2:1 you should be able to run on 91 octane with no problems.

I have an iron headed 11:1 SBC. It runs on 91.

You are wasting your money on race gas. Your car would run faster with 91 octane. Running too much octane is bad for your engine, and bad for performance.
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