Hi Randy,
I have a Master Engine made in Italy. It has the number 4 on it side, do you know anything about these engines? Its a nice looking engine, just not sure it would be any good for stunt. It looks like it could be close to a 19?
Nice gold head, ball bearing, seems lite??? Don't remember ever running her. It also has a nice muffler with the engine. Not sure what size prop to play with??? If you know anything about her I would appreciate any info, Gary