dang.... not what anybody wanted to hear Jason. If it had nothing to do with the block it sure seems a lil black cloud follows wherever they go. I'd be so nervous at that point I'd be pulling covers and the pan after the first few passes.... for a few events until my comfort level was out of the red. Sure was hauling the mail. It would be fun to have 8-10 more mph on mine, but it sure has been trouble free "as is" (9.37@142 best)