help with tuning an AED 750 Ho

I was checking my spec sheet on the carb where it states all of the bleeds. It shows an interm air bleed but then states N/A. just curious about that... I ordered some .030, .031, 0.032, bleeds and some .071 and .073 bleeds. I also did a bit of tinkering, I put a vacuum gauge on and at idle and as best I could tell with the cam it was between 7-9. I thought possibly the power valve may be to large so I went down to a 3.5, it didn't seem to help my cruise rpm a/f but it did seem to slightly make it slightly snappier when you mash it. I also tried tightening the mixture screws another 1/4 turn. which made them 3/4 out or less, still nothing. and I also tried to adjust the rear butterflies open a hair, no real help but made it a lot harder to start so I adjusted them back.... There is no shop I can find around that had idle restrictors to I had to order them, hopefully they hurry up and get here so I can get this thing tuned in...