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Old 09-02-2007, 04:29 PM
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Restrorob Restrorob is offline
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Join Date: Apr 2005
Location: Show'n my truck off !
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When you say you set the valves "loose" how loose ?

They should be .003"/.005" and I would adjust to the .003"

It's possible a baffle broke loose inside the muffler which if moving around randomly could restrict exhaust flow which would cause a sound like you described.

Take the muffler back off shake it around and see if it rattles, Tap it a little and shake again. Try blowing air through it to see how much flow you have.
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