There are two sets of pulleys out there a drag set and a street set, the crank pulleyon the drag set is very very and the street set is just a little smaller than the stock. If you get the drag set you will have to upgrade your alternator or there will bea charging problem. I would recommend that whichever pulley set you get to keep the smaller of the two alternator pulleys on to maximize charging.You will need to get a different size belt too! AsLX5liter said if you have an offroad pipe then go ahead and bypass the smog pump.
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88LX NOTCH 5.0, TFS Twisted Wedge Aluminum heads, 2.02 1.60 valves, BBK shorties unequal 1 5/8, off road H-pipe, Flowmasters, Drag lites, custom grind cam, solid motormounts, Aluminum Driveshaft, BBK springs, lakewood 90/10 50/50 shocks, BBK upper and lower control arms, 4.10 gears, centerforce DF clutch, adjustable BBK clutch cable with aluminum quadrant, Billet Steel flywheel, 70mm Acufab Throttle Body,MAC cold fender mount induction, K&N, 3 core radiator, flex-lite-fan, custom hardened push-
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