Make sure you get the Deepest GROOVE PULLEY POSSIBLE..trust me you DO NOT want to throw a water pump belt.....it may cost a little more for the better (deeper groove) pulley but trust me its well worth the cost.
when you size up the belt to the pulleys try to get it where the belt sits so low in the pulley groove that a slight edge of the pulley comes up around each side of the belt..
if you could set up RIB belt it would be even better.
Brian
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Bjuice..
"I'M YOUR HUCKLEBERRY ! "