If I recall the max recommended engine is around 1.08 2-s
the plane is heavy o.k. I flew mine with a 91 2-s.
It gave up when I started to do blenders, the fus kind of twisted a little bit.-
my felling is that if you put a lot of engine to do more with it, you will fatigate the fus fast, nevertheless if you insist, change the hardware for 4-40 on everything!, that is how I lost mine, the elevator clevis pin just disapeared!!