charley: I was just wondering. I have had only piston with port timed RC engines. Except for Saito 4 strokes. I wish a engine like a 4 stroke connley with 4-5 valves per cyl and equiped with needle and ball bearings would be developed. The sound of a good four stroke, with power and would burn gas instead of high priced glow fuel. In time it may happen. Space age materials will make it possible. Any Ideas???? Thanks John