i have an older v1 converted v2-sq s/c off a 5.4. i have the 4.6 bracket also. now my question is what size pulley makes 10-12psi? i know its 6-rib im looking for. im also using 42 lb injectors and 90mm lmaf. i dont have any ambitions of adding anymore boost because im using nitrous also. this also WILL NOT be on a stock motor but it will be using stock P.I compression. :angel4: