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Old 01-30-2008, 10:04 AM
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RodKnock RodKnock is offline
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Cobra Make, Engine: KMP 539, a Ton of Aluminum
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Further details, the A/F was around 11.8 up to about 5000 rpm, then it rose to around 12.5. The original A/F with stock jetting was around 11.6 to 11.9. If put back to stock jetting, the motor made 580HP. Peak HP was at 5500 rpm. peak torque at 4500.

Thus, if I keep the modified jetting at 12.5 A/F, at least until I get to a chassis dyno, then the engine in theory should run fine on 91 octane CA gas?
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