Thanks guys for all the input, much appreciated . Not quite sure what I'm going to do at this point, maybe some 440cc injectors to see what that does. These are fun little cars, seem well built. I personally drive Mercedes and so does my son, but he likes anything with wheels. Sparkyboy, I've built BBC anywhere from a very mild 600HP 468 for about 6000.00, to a full roller, studded top and bottom 540 that does 825HP for about 17,000. How fast you want to go is directly proportional to how much $$$$$ you have