sweet99ss

iTrader: (41)

Okay what pulley do I need to make 6 psi on almost stock ls6? Talked to a dealer of procharger parts and was told 3.7 and than called procharger and they said 4.25... Than another member on here said 3.7 will def make more than 6lbs with my setup and has ran 6 lbs before... Only mods are LT headers and high-flow cats. Kit has twin intercoolers and over the rad filter. Let me know if you need any more info to better guestimate for me.