I had a F40 once with that same combo. Yes, you need to relocate the blind nuts in order to make it fit. In fact, you should really use a different mount all together. The one that comes with the plane is not quite enough for that engine. The sad thing is, you will need to put the batteries behind the canopy to balance with your engine choice & the fuse is weak back there. I did a "wall" & snapped mine in half. Good luck.