Carter AFB 9636 ?

I think taking the boosters out and making sure they are clean and clear of debrise is a good direction.
(You know this is an emissions calibrated carb right?)

Different float hieghts can help, but I don't think that'll do it. If the idle screws don't do jack, your to rich. 2 - 2-1/2 turns to the left is a good starting point to see where your at with the idle.
Whats the idle rpm?

I'm running out of time..I work midnights and it's close to leaving time.
ttyl, tomorrow...