Hello I asked this Question on DSM talk and they pointed me to this site.Anyway I recently built my 420a up with forged internals and all that good stuff. SO now i need the turbo kit and thats when i started to get confused. So before I started buying wrong parts I thought I better ask some questions. I'd like to have about 500 hp. No more then that though! So what size turbo and intercooler would I probobly need? Will a turbo with a .50 compressor and a .63 exhaust turbine reach that high? Sorry If my post is a little sloppy I just woked up and whanted to post this before I left for work. Thanks!