TUNE TUNE TUNE... too many people dnot understand the importance of tuning for a street motor w/ less-than-bullitproof internals... or blocks for that matter.

If you are running the power you claim, youare maxing out those 450's and should step up a notch and get some 550's or so. For what you are going for, i dont think simple piggy backs will cut it... you will most likely need a stand alone and even more Dynotime. but once you pull that off, youll be sittin in butter.

8.5:1 for the street is great. 9.0 is getting kind of high, and its really gonna start to limit the amount of boost you can run. Static compression ratio PwnZ joo... thats why bolt on turbo kits can only run a girly 6 psi... 8.5:1 compression is great for a forced induction setup and thats all the higher id go.. especially when the turbos that make real power dont start cookin till at LEAST 14 psi... and get real Grisly around 21 psi...

but like we all said: Standalone is gonna be the way to go w/ the HP numbers you are shooting for. Piggy backs, 440s, and FMU's are all find and dandy for bolt-on kits for turn-key applications... but when you are getting serious like you are... you are gonna need some comprehensive tunability, like the kind that standalone's offer. If you hold off on other bolt-ons and go for the tuning accesories, you can wring some more power w/ fine tuning, or you can raise the boost even more and make the most otu of what you have now.