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Old 01-05-2009, 07:45 AM
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302 Z28 302 Z28 is offline
 
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Quote:
Originally Posted by sunsetdart
You didnt say if they are power brakes. If they are, then you may have a crack in the vacuum hose that goes to the manifold, so when you apply the brakes, the crack allows vacuum out of manifold. Thats why the RPM's go up.
The title of the post indicates he has power brakes.

Vince
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