If you don't mind lay out what you are thinking to reach 900whp @ 9k...I am also already assuming this is excluding the fab work to get it to fit properly and custom ds etc..which to me none ever sound like a big challenge at all, however if you pay someone they usually charge a good amount for custom fab. I hope you aren't talking about a stock 2jz pushing 900whp...I'm sure they have done it on the dyno, but I would love to see that same tune on the street with the accompanying slicks...I can predict what would happen to the engine...