03-20-2008, 08:59 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,001
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Not Ranked
On those two items it shows the crank pulley's diameter as 6 3/8" and the water pump pulley as 7 1/4" -- that's an underdrive condition. You should try and get your two pulleys to have the same diameter.
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