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Old Mar 03, 2012, 11:50 AM
RCFVR is offline
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Keller, TX
Joined Aug 2005
299 Posts
That is usually the result of aluminum/aluminum rubbing. Check your header mount with the engine to see if there is some abrasion going on there. Assuming the engine has been run in already? A new engine might produce this as the parts are wearing in, initially.
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