I'm sure someone will correct me - engine thrust line alignment is quite important. In general, the thrust line of the engine should be no more the 2-3 degrees down and 2-3 degrees to the right. From what you have described, it appears that the thrust line needs to be adjusted, as well as ensuring that the acft is within CG limits (in general, 1/3 the chord length back from the leading edge of the wing). It's better to be a 'bit' nose heavy than have it being tail heavy.