Holy Cow !!!!!!!

Thats a new one. I haven't heard of anything bigger than a YS 1.40! (which by the way is hugely overpowering). You are really pushing the limits on that plane. I can't imagine it will last much longer

If you end up tearing the plane up please call Great Planes and ask them for a refund. Make sure you tell them you've got a 180 in it and are running a 16x10 prop. lol. That might end up being the funniest coversation known to mankind.