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 2013 Mustang v6 supercharged dyno 449whp 417tq - YouTube