I must admit; my best friend runs an auto repair shop. He sent out the big block and had it built to 555 cubes. Then with ceramic headers he had to squeeze it in. I've owned the car since 74 so it's always been garaged and didn't need any body work. It did get fresh paint and interior which I did some of the interior. The entire drive train was beefed up to manage the horsepower and also disc brakes all around to slow that puppy back down. Has a 200 shot of nitrous added that is really not needed for the street.