Ok guy's my brother just put a new distributor and VIP from Performace Distributor's in his truck and that was by far the biggest wake up call the truck has had yet. Man I am telling you it woke it up. It went from a .040 gap on his plugs to a .065 and up three jet sizes. Now it just blows them big 22.5" tires off on the street. The responce now is as soon as you hit the gas.