Modern sport engines are setup with low timing and compression making tuned pipe operation safe and easy. High port engines are much more critical about pipe and carb tuning. Pick a prop load, fuel, and shorten the pipe until it surges by 80% throttle. No special glow plug is needed until rpm gets very high or plug life is too short. Any changes to prop load or fuel will require retuning. This is something you will have to learn yourself or find someone that can show you how its done.