Thread: Coyote xs v 427
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Old 11-18-2015, 02:08 PM
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fordracing65 fordracing65 is offline
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Location: Tempe,AZ-High Point,NC, AZ
Cobra Make, Engine: Kirkham #684, 482FE, Mike Mccluskey build
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Our 91 octane in AZ is about 87 when tested, I had to mix 110 octane race at 5 gallons to mix with the 87 to get a 95plus octane it did not ping but I was down on power, that was the only drawback to the 11:1 compression...
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