Hi all I was thinking of putting A 21cc gas to glow engine on this. it has a 75 supertiger on it now and a lot of weight upfront to balance it out.The 21cc engine come out to about a 1.60 ci I thinkmabey a 14/8 or 15/6 propwould give it about 7000rpm I have about 1 1/2 lb of weight up front to balance it and the plane weightis about 10lbs. so what do you all think michael