Thanks for your response, av8tor1977 it did not have a bridge in exhaust port so I dissemble it to cut the extra metal off checked cc and it was a 30cc thanks, it runs good with stock carb. (not a warbo) is there a better carb, and would this engine fly a Great Planes Giant Big Stik with plenty of power like it should and not like a cub I know thay recomend a 25cc to 35cc engine but thay are talking about airplane only engines not conversions.
nextofkin