I had to jump in there too, but actually calc'd some numbers.
QUOTE
On the higher speed sections of the course, aero starts to become a significant factor. If you've only got 150 hp at the rear wheels, at 100 mph, you only have 99hp left over to accelerate the car (3200 lb / 99 hp = 32lb/hp), while the stock V8 with 250 hp has 200 hp on tap (3400/200=17 lb/hp), so it'll have almost twice the acceleration as the lighter, lower hp V6.