Careful with the smaller pullies. Since we have an open-deck block, it's more prone to failure than the closed deck 5.0L. It provides better cooling, but cannot handle boost as well as the 5.0L. If you are dead set on getting a smaller pully, I'd suggest getting a very polished dyno tune with good octane so you have less risk for failure.
Thanks I will keep that in mind. While I was waiting on my pulley to arrive. I found a boost leak.
I fixed the boost leak and had the car dynod again. I guess that was the problem cause the car put down 449whp and 408tq at 8psi it was 58 degrees so i know that helped as well lol. So i guess I will be returning the pulley back to procharger now lol.
Heres the dyno video. not the best video but you get the point lol http://www.youtube.com/watch?v=y6RLo5KIA8Y
Last edited by S197mustang; 11-11-2013 at 03:44 PM.
Reason: for got the video