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Old 11-06-2006, 10:43 AM
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PONTIAC DUDE PONTIAC DUDE is offline
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Join Date: Dec 1999
Location: West Central Florida
Posts: 14,756
Unhappy

This is a know issue with the 4500 series and they make a thin plate that MUST be used when installing it on an open manifold.

Personally never happened but heard it a bizillion times over the years.