Sam, SeanT,

I wish the Zenoah G23 was a rear induction engine, but it isn't. I mounted the G23 inverted, so there is a cutout on the right side of the cowl for the walbo carb.

The stock G23 muffler is too big for the cowl, and would need a cutout the size of the Grand Canyon. I bought a B&B Specialties inverted muffler (cheapie) from Horizon and now there is a cutout on the bottom left of the cowl.

Not too bad, actually, and it could have been worse. At 100 yards, I probabaly won't notice the cutouts.

...Ron