Well, I carefully re-sync and adjusted the air screws. Much better now. Still think it could be better. Might re-seat the carbs to the intake boots. The new intake boots I bought don't seem to position straight from the engine head to the carbs, and then to the air box. After putting some miles (100) on it last few days, the engine is smoothing out after not being used for 20-30 years. Really obsessed over this bike the last four months putting it together. Looking forward to getting the remainder parts and finishing it up.
Concerns:
-Very cold blooded, will not idle smooth until running temp
-slight fumble in acceleration 1-3k
-slight idling fumble, very slight