The air bleed primarily affects idle to 1/4 throttle, same as the pilot jet. The 45 pilot is a suggestion I make to people over the stock 52. 2 turns out on the air bleed was probably fine. I agree with Hoodlum that 2 notches is a big jump on the needle.
What oil mixture are you running? Less oil means the mix is thinner so more fuel will flow through a given jet size. If running like 50:1, I could see needing that lean of a jetting setup.