As this is a World Models ARF it is probably using the same engine mount as what was in my World Models P-51.

I mounted an OS FS-70 II inverted in this plane and had to use a dremel to remove some of the engine mount cross beam to get the engine far enough back.

Both the top and bottom cross beams had mouldings for use by the front wheel on a tricycle landing gear configuration.

I just removed this part of the bottom cross beam and the engine sits back far enough now.