02-25-2010, 03:23 PM
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CC Member
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Join Date: Dec 2001
Location: Castalia,
Oh
Cobra Make, Engine: EM cobra, 450 inch sbc running a best ET of 9.14..so far..ALL MOTOR...approx 800 horse.............ERA with 482 FE..All Aluminum Engine
Posts: 1,395
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The header wrap, because of the high heat retention, causes the metallurgical make up of the metal to change. The metal will actually crystalize. That being said, I've used header wrap for years, and never had a problem.
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Jack
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