Thread: Pre-ignition
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Old 02-18-2015, 11:28 PM
Andrewyoung78 Andrewyoung78 is offline
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Join Date: Nov 2014
Location: Kailua, Hi
Cobra Make, Engine: Superformance spo2815 roush 427sr polished
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Thanks guys should the timing be advanced or retarded? I've noticed the idle mixtures doesn't move much with the vacuum gauge but I'll check the throttle plate too. So when the engine is idling the throttle plate should be closed?
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