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The water pump I used is a FlowCooler 12 vane and it is not dependent on rotation like a stock pump.


Are you saying the pump spins in the opposite direction of “normal”?

If so, the first thing I would have tried is a set of stock pulleys to see if the direction made any difference.

68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads