The Advance 40 is one great flying plane. I had one for over a year and it would do anything you ask it to do and yet still land like a trainer. Mine was powered by a Magnum 53 2-stroke and had good power and vertical. I'm not to sure about your 40, is it a LA or FX? I'm sure it would fly it fine, but to get the most out this plane a good BB 46 is about perfect.