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Old 08-12-2000, 07:27 PM
Chris Haney Chris Haney is offline
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Join Date: Apr 1999
Location: Apex, NC USA
Posts: 176
Noticing the thick layer of black sludge beginning at the EGR port I have removed the crossover duct and the intake mainfold. These I can clean easily but what about the head. I can see the same layer of scum on the head walls and the valve stem.

Is there some way to deal with this or isn't it worht it?

1991 350 SDL
125,000 miles
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