IMHO, once you start going over 110, it's as important to work on the aero package as it is HP. With minor mods to the engine, and a very prototype(read: broke after use) underbody tray I have seen 153. Clocked on radar by SCHP, a friend of mine. I have looked into vortex generators that would adhere on the sunroof to help the airflow stay attached to the car, therefore decreasing drag.
Put some water drops on the rear window, get up to around 50 and tilt the sunroof... you'll see the water in the center of the rear window begin to blow down, a sign of better attached airflow. It's a theory, might try it out.


JasonS 2000 SVT #1119 Go: SHOshop Intake & y-pipe, Brullen exhaust, Eibach springs, EBC TurboGroove rotors, Corbeau seat, TRW 5pt Harness Show: Knauberized, Clear corners