I just aquired a used quadra 35 with a tillison carb. Starts and runs to about half throttle fine.Seems to have no difference in r.p.m. between 1/2 and full throttle. Running a 18/6 prop. Seems to run a little rough all the way through.Put in new diaphram kit but not welsh plug/rebuilt kit.Wondering if it might be timing(points) or magneto gap? What are the point gap/flyweel mag gap? Has anyone run into a simmular situation?

George