To be honest I've never weighed my truck with a full tank of fuel or with all the crap in it in street trim, it would probably go over 4000. In race trim with 5 gallons of fuel it's about 3800. I've never owned a pure race car/truck, it gets driven HARD on the street. How fast???, I'd like to know too, it keeps breaking the weak links. Last attempt I had to drop the throttle at the 1/8 and coast through, that netted a 10.74@108.Dave