Word of advice
I have a Saleen supercharger and i love it but make sure you are really sure about your tune because I actually had my engine blow up because my tune that I had cause major engine failure and I had to rebuild my engine with forged pistons and connecting rods, that 550hp isn't what you will really be pushing just because I know it wont, even with you your pully boosting 11 psi, but i'm happy for you man, supercharger power is great but just make sure you put racing spark plugs in or you will melt your stock ones, believe me I know about that LOL if you want to know anymore about what your getting into let me know i would be glad to help you make sure you don't make the same mistake I did and cost you about $12,000!