672 rwhp 2011 5.0L Mustang GT

[WhiteStang]

Are you sure on this pulley size, my same stage 2 kit makes 7.5 psi with the 4.5 inch pulley that came with the kit, a 4.3 should make about 9psi? I dont think you can even get into the 3inch sizes on this kit unless your blowing off the extra boost to keep it down to 9psi?

 

[*JZ*]

Yes. I'm sure. It reads as clear as day on the pulley.

 

[WhiteStang]

they must have givin you a different size crank pully then me.?