Oh My God thats going to be a over powered Cub. Just my 2 cents but It's a Cub, You can put just so large of a engine till the airframe won't go any faster. I found mine with a saito .62 their is little change in performance from half throttle to Full. It takes off and climbs at 3/4. Thoes engines in full scale would be like replaceing the Continental C-85 with a Continental IO-470 Good luck you will love the Kit.