Matt,

There are several good things. Personally I have ridden in a STS twin turbo in vegas. It was Budman's car, fresh from the SEMA show. I rode in it to and from the track. It appeared to have plenty of power with just 3 1/2 lbs of boost. At 8 lbs of boost I belive he was around 690 hp at crank and 548 at the rear wheels, 558 torque. the best I remember. Hopefully he will see your post and comment.