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Underdrive Pully kit
mglangley21
05-15-2008, 04:47 PM
Is an Underdrive pully kit worth the money? and what gains would i exspect?\
UTVols98
05-16-2008, 03:59 AM
Maybe 5rwhp. Helps a lot though with a cam so car revs faster into the powerband.
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