Hello all. A buddy and I are assembling a Hobbico Avistar 40. I read about some of the mods to improve the aerobatics and better landing abilities. My question is what is a good engine to put in it? I want something with power - but not too big so that its extremely nose heavy. I was considering a 50 size or bigger.
ANy thoughts? I see some models claim the same size/weight as a 40 but with power of a 60 (or something).

The 40LA is weak... what is your experience?

Thanks!