I was gonna go with the xe256 cam, but the guy at comp cams said this 4x4 cam will pull like hell. I told him I was after torque, because it was a heavy car, and I even suggested the xe256 cam, but he told me this 4x4 cam is even more a torque monster. I dunno. So many choices, but so little extra cash. But in all honestly, I am not looking for a race car, just a toy, but a toy that can get out of its own way. I am really hoping going from a 2.87 rear to a 3.73 with the cam, ect will make a difference.