Is his an auto or 5-speed? To give you an idea, I have raced my buddy's '99 GT with full Bassani exhaust, 3.55 gears, and stock everything else. He dyno'ed at 260 RWHP and 300 RWTQ and has ran a best 1/8 mile of 8.99 @ ~80 MPH. You can see my best 1/8 in my signature, but I will say this: his 5-speed takes advantage of my AODE because my car is stuggish out of the hole, and those 4.6's pull HARD in the higher RPM's. I would say from a dig, you should be compareable (depending on wheel spin), but he is only going to pull away from you after that. Good luck and be safe, take it to the track.