I dont know if the fuel preassure is a factor in the float clip in the carb not keeping it shut. if the preassure is low enough I guess the carb will feel up to that point, close th clip, and the excess fuel still being pumped will return to tank. I don't want the trouble of having to switch that light switch button and waiting though. I want everything to be mechanically in sink I guess I am saying.
I guess its not possible to buy the lobe? Eitherway I want to look in this engine so I'd still appreciate any input on the cam shaft switch job.