redtail2426

iTrader: (10)

i did 396 with stock pulley and stock catback,paper filter and 421 after gmmg,slp pulley and k&n filter

TXZ28LS1

iTrader: (5)

u should def be over 400rwhp.. throw in that pulley and for sure youll be at 400

OJmobileII

iTrader: (3)

u shouldnt be dissapointed at all. dyno numbers depend on so many variables. ur makin plenty of power/torque across the board. and neither fall off rapidly. assuming tires/driver/etc u should put up some excellent times at the track and i'm sure u've already had alot of fun on the street.

Louie83

iTrader: (3)

Horsepower under the curve isn't too too bad.

Add injectors and an UD pulley and it'll make a big difference.