Need help tuning AED carb

Those idle air bleeds with the hex are drilled brass set screws. McMaster Carr sells them in packs of 50. The main air bleed is not changeable. Put the 64s in up front and report back. On a 650 a .033-.035 IFR is all I've ever needed on a 340. Take a pic of the emulsion holes on the metering block when you change the primary jet. Adjust the idle to 13:1 with the motor fully warmed up. How many turns out are the idle screws? Is it 4 corner?