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Old 05-25-2013, 11:58 PM   #14
Rufton
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Join Date: Apr 2013
Location: Knoxville TN
Posts: 1,170
Re: 1999 350 vortec K1500 head gasket

What is that junk in the intake runners?
Some EPA stuff?
The injector spider leg portion of intake is coated w/ it.
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