by oscarmayer » Sat Dec 22, 2007 1:55 pm
looks liek your having timming and some tuning issues at the big end. you may want to have a pro look at if, if he has not done so already. that bouncing around is very dangerous for the engine. your going rich then lean, then rich, then lean. it also could mean something worse. detonation.. and that means motor goes BOOM.