Thanks Ram Jet and iron eagel!

Ran it some more on the stand tonight and low speed was too rich...seems to be idling and revving great now. I am using muffler pressure, and don't have a check valve on the muffler (saw in a thread or two to stay away from the muffler check valves). I have seen a bit of fuel in the muffler but nothing major. Have also quickly learned to just let the engine prime itself on startup to minimize flooding.

So far so good on the uniflow...can't wait to hit the water...