how much hp

Less then you think. I estimate my sons Dart to weigh at least 3500 with him in the car and maybe even 3600. It figures to make about 500 HP at the flywheel and about 425 at the wheels and its run 11.60's so far. I figured it needed about 350 to the wheels to touch the high 11's or low 12's so we went for a little more. I agree that if it weighs in under 3000 lbs that 300 at the wheels which would be 375 to 400 at the crank should get low 12's to high 11's with good hookup. Ron