Well I ran my personal best of 12.43@110 sat night, but im really thinking about going to a billet s366,472, or maybe even a 475. Im just wondering will i really pick up alot more power or should i just keep my 4094vvt? Right now im makin 40psi boost with 58psi drive pressure and the egts are 1650* at the end of the track. I have plenty of fuel just lookin for some thoughts and opinions on the billet turbos i mentioned, like driveability and what kind of power i can expect with my current setup. Thanks!