ORIGINAL: AKondor
If using gas, then a small very lightweight 30CC-40CC would fly it fast. The best fitting solution, because of the narrow cowl would be a 1.80 glow or a very expensive electric conversion set up.
I think I'll take the 1.80 route, what do you think about the Saito 220 or even better the Saito FG36? are they big for the cowl?.