That is a nice clean setup, but I do not see where the air is going to exit. That makes for a hot running engine. I have been modeling for just over 20 years now and tried everything with cowls and you just simply have to have plenty of exit air or if you put it in its nose and 3D it I can guarantee it is goign to get hot and quit and that can cost you the plane. I've seen a 40% go in for that reason. Engine was hot as a firecracker.

Norman Ross