Okay ! thanks for all the inputs. The engine will idle fast (I am guessing maybe 3000 or so rpm) the idle speed is much faster than my other plane with the same engine. However, the fast idle will still not cause the plane to move on the runway but believed to be fast enough to cause problems during landing. A tachometer has been used to adjust the idle and top-end running, I am not sure of this but I believe that 2300 was the target for idle. Realize that the engine will hold 2300 while the ignitor is connected but only briefly when the ignitor is removed. The prop size is 14X6 which I thought was a little small as my other plane uses 15X4. I am going to remove the carb and immerse in carb cleaner. I believe that to be the probable cause as the plane was running great 3 yrs ago on that prop and all of the initial carb needle settings. The concern about the cam gear timing is over my head (out of my knowledge spectrum) so that one will have to go to the bottom of the priority. The other band-aid is to take the plane off at fast idle and then just before touch-down to cut the trim and let the engine die to land. I have done this in the past but it is a last resort. I will make a copy of all responses and mull over them...again thanks Wayne