I converted one for my brother and it runs well. Much better porting than most of the other 20cc (ish) engines. He is putting it on a Big Stik and I think it will fly quite well.

Sorry, I didn't get any prop/rpm numbers on it, but suffice to say I liked the engine enough that I tried to talk my brother out of it.

Perfect candidate for Gas/Glow...

P.S. I just weighed my Super Tiger .90 converted to gas and ignition to answer someone in another thread. It weighs 1 lb. 12 oz. without the ignition system.

AV8TOR