UPDATE:
Bike was tuned very close to perfect but experienced a bizarre small blubber/flutter at 3/4 throttle around 6-7k ...... Tried many different tuning combinations but what ultimately cured it was resetting/checking float height on the carbs to 22mm (stock for cb550).... Bike has no fluttering and last night I was able to take both my gf and I up to 80mph easily on freeway....
Cb550k
022a carbs (stock is #100, #40/#38, 1.50 turns out, 4th clip pos)
My settings:
#105 Main
#38 Slow
#1.25 turns out (May adjust a tad but seems to run well)
Uni foam filter in stock airbox
Clip position is third down from top
A small mod I did was use a spacer nut and a stud between the airbox lid and body to allow a little extra air in which seems to help any potential flat spots (which are not present)