RE: best engine for Sig Four Star 120??
I don't know. I don't pay attention to that. I fly to enjoy myself. It's supposed to use fuel.
I fuel it up, fly for about 10 minutes, land it then sit around for about 15 or 20 minutes talking to my fellow RC'ers, then fuel it up and fly. I never noticed how much fuel it uses, nor do I care.
CGr