Clyde
have you checked to see if the fan is flexing
when the RPMs come up. With hood up rev the motor and watch to see if the blades flex and get close to your rad.
Your fan is very close my Chevelle is not that close. There is about two inches on mine.
I dont think the pump could be the problem
if it was then your hamonic balancer would also have to be changed to keep the pulleys lined up. Or at least a different pulley on the pump.
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Jason
http://home.wizard.org/twchevelle
