RE: What size engine?
I must tell you guys this. I permanantly mounted about 6 ounces of lead in the nose using Epoxy thinking that this would be the only engine for that plane. I added an additional 3 ounces using screws so they will come out easy. The epoxy'ied ones will NOT come out. Period. So, I have to watch the weight up there. So, lighter is better, I can add weight easy enough. But heavier, by 3 ounces or more is not.
CGr.