I'm having a hard time deciding on a powerplant. I have a NIB ZDZ 40 RV with a pitts muffler tapped for smoke which is what I was thinking of using. But do you guys think the 40 is too small, meaning I need a 50cc? I was also considering a Fuji 50 (and maybe the Fuji 62 also) but I know they are heavier and being I would like a smoke system the ZDZ makes better sense.

What do you guys think? Would the lighter weight of the ZDZ 40 make it desirable and enough power compared to maybe a little more power from the Fuji, but the Fuji being heavier in weight also.

What say you?