Yes He is talking about the difference between the crank and chasis dyno. The MTX duratec non SVT is around 135-140 at the wheels and 170 at the fly. With only a few bolt-ons I had 152.6hp and 153.6lbs/ft. that was a long time ago thou, I have since done major mods, just waiting to hit the dyno again so I can get my car tuned right, my last run was 195.7hp and 196.2lbs/ft. I think I have a pic of the dyno screen in my profile, dunno if it was that run or not.