There is a video of me racing a tt supra and a modded STi on the highway, I beat the STi and lost the supra not by too much...

The next day I dyno'd 255whp...with 50 compression in cyl 1, 120 in cyls 2,3,4...

You still should have been able to trap higher than 99mph even if you had bad compression. This thread was the 1st time I saw the video.