damn dude i feel your pain...i dont know how you do it in a 5spd, but i did it in my Celica GTS (6spd) 3 times before I gave the car back to my Dad.

with 400bhp you should put down 340 to the wheels. With the right tranny/traction set up you should pull 12s.

BTW: dont post theortical BS on the board, it doesnt go so well...unless you have a lot of pics of your "400bhp beast"...