First off, i am looking to buy a saleen supercharger from someone who took it off of a 2002 saleen. First off, is this the series IV blower? Lastly, he said that the pully that it comes with is about 12 psi. About how much power will the car make to the wheels. Is 12 psi on the saleen blower safe, because i know that that is pushing it with the vortecs and kb and such. Your help is much appreciated. THanks. :SNSign: