After reading that another member could put his car sideway with a 350 and a 4 barrel carb, I need to ask, why cant I do that too !! Im jealous.... I have a 72 GS 350 matching numbers. It all original as far as I know. I recently put a new timing chain on it when I had the engine out, and when I had it upside down on the stand, all internals looked new like it had been rebuild at some point. It has headers (which Im getting ready to take off because I find them loud) and the complete dual exhaush. I believe 2 inch. its a small pipe. Currenty has a HEI distributor I also have 15" wheels and P235 BF Goodrich TAs on it. Big Rubber The original non-posi rear end is there too i believe has 3.08's Also, 4 wheel drums. Even a with the brake on, the car doesnt spin. Sometimes if I go around a corner, I can get a very small chirp.. but I want more. The question is, what do I have to do to get the rear wheels to brake loose? I have a set of stock exhaust manifolds to put back on and then plan a 2 1/2 inch system with a H or X pipe. What else can I do ? Id like to keep the stock appearance, but hidden modifications are fine with me. Someone mentione to me that the 4 wheel drums might be preventing the rear to spin as the presssure on all 4 wheels is the same?