ORIGINAL: buzzingb
This puppy will fly with any engine that is attached to its nose. The 4strokers are also good choices. Saito all the way though 56,65,72,80,82,91,100,125 are all good choices.
The .65 and .80 are on the heavy side and anything over the .82 is just a waste of money. There is no need to put anything bigger than the .82 on it unless you build it poorly and it weighs a ton - in which case it will probably fly poorly no matter what you put on it.