Ya some people are a bit rude but oh well man. It happens to us all, I have a AVO 500S turbo that well make 450whp on pump but i want my engine to last more that 25k so i have it on a 17 psi setting.(Turbo is rated at 30 psi) 370whp. Assuming you have all the supporting mods for 450whp the AVO 500 or 550 Should do it. I strongly reccomend meth though man. For longevity sake.