Ive got exams too, know your pain. I ran in the 72 as per instructions. Used irvine contest 10 fuel. ran the engine with the very rich settings for 1hr, then started leaning out everything. You will notice much improved fuel consumption and better running once you do this. I also re adjusted the valves. If you are unstisfied with the vertical authority once run in, try tweaking the low end needle, because it has an effect on max revs.