I pulled the plugs on #7 & #8 after it started missing. No real strange noises but runs rough. The tips on both plugs for these cylinders are bent to contact. The plugs in all the other cylinders are fine. I assume that I have chipped valves in both cylinders and will be pulling the head off. I am going to run a compression check first but won't start it any more. Belts were done by Rocky Mountain Sportscar about 30k and 4 years ago with about 4.5k per year driven. It ran perfect until this happened. Shouldn't all 4 on the back be bent or chipped if it was a tooth jump. Will it run if it jumped a tooth. #5 & # 6 were still firing fine? Any thoughts would be appreciated.