Originally Posted by -Q-

I have no idea...it came with the used kit I bought along with a 3.63 (I think) pulley that's on the car now. I made 8psi with the 3.63 on a stock internal motor...rest of my mods are in sig. I'm actually not going to be using either one since I'm converting to an 8-rib setup, so if you're interested in either, let me know.

Originally Posted by armyspeedfreek

what where you spinning the motor to when you ran the 3.63?