Hey, I´m looking into a World Models 1/4 Scale Cub and I´m thinking on putting a gas engine in it, I wrote them, and they told me a 40 - 45cc would be OK, but I think its too mucho power, I´m thinking on using the Evolution Gas Engines, but still don´t know whether to use the 26GT, 25GT or the 45GX which is lighter than the 35GT...any suggestions?