Just an hour ago I dropped off a Superbird at my customers house. I did something I was not open to doing. It is a 56,000 mile car, 440-4, auto. He wanted a Hemi and a/c. I built a 528 Hemi, Aluminuim ported heads, 4340 crank, H beam rods, dual quads, 671hp@6250, 690 ft/lbs @ 4100 on 93 oct. Full boggie 727, 3.55 rear. modern a/c system, billet evreything ( brackets and pullies). Hidden sound system so if the hood is closed at a show you would never know its not a stocker. Only drilled 2 holes in car and put all the original parts away so when he wants to sell the car I can put it back to stock in a week. It is a trip to drive, roasts the tires at will with the a/c on.