Originally posted by PA 3L SVT:
Yep, with the 3.0, which I now know needs some serious tuning.
Open manifolds: imagine an exhaust system that ends BEFORE the cat in the SHO Shop y-pipe.
There is a really huge post detailing my day at the track in the dyno forum, if you are interested. Look for "Set to dyno the 3.0" and go to the second page.
if you actually ran with open manifolds that is 1/2 your problem. the car runs like poo without o2 sensors... couldn't you tell from just driving it? when i put the shm headers on, i took her for a drive (for fun) running straight out of the headers... my god the car was sluggish...