Thanks Luke. The drag radials are Mickey Thompson 275 60 15 (the older version). The tune is from VMP. Its their 93 street tune.

I have to disagree with the ease of installation of the KB. You have to cut a softball size hole in you engine bay for the air intake pipe. I guess it's not that it's difficult, but I didn't want to do that to my car. That's as far as I read of the installation instructions....I now have a TVS.
I love the cool factor of the TT setup, but you also get a lot of under hood heat to go with it and relocating the ECM doesn't look fun.
I think the reason a TVS w/100 less HP is as fast as a centrifugal w/100 more is because of the difference in torque. New gears and a stall just isn't necessary if your making good torque. A centrifugal is easier on the drivetrain and probably won't break stuff as often.
Just my $.02.

My car made 669/581 on 8 to 8.5 psi on E85.

669hp on 8.5 lbs of boost????? How much timing does it run? Maybe I should try E85.