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454 with comp Thumper cam troubles

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07-30-2020, 12:23 PM	#1
woodsey Registered User Join Date: Oct 2011 Location: Stettler Alberta Canada Posts: 10	454 with comp Thumper cam troubles I have a fresh rebuilt 454 with a comp thumper cam and I cannot get the engine timed properly. It will idle great but detonate under slight load. Any input would be greatly appreciated

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