Okay so Idid some light sanding with some 600 grit, and the area around the exhaust port is better, but not perfect. It's finger-smooth around the whole port, but not fingernail-smooth at the corners, above and below. I tried to take some more pictures, but I'm having a heck of a time getting my stoopid camera to focus and get enough light in there.

Anyway, I didn't want to sand any more in case I started ovalling the cylinder.

I think I'm going to order a good aftermarket piston and a set of Mr.Bowman's rings and give it a try with this jug. If it doesn't work out Ican try one of the aftermarket cylinders as well.

I have been cruising the chainsaw forums and some guys are turning this engine at over 11K with porting and exhaust modifications! Should be a beast if I ever get it to run.

Thanks again for the help