For tuning, you can use a power valve plug to take the PV out of the metering equation. If it is still rich at low speed cruse (Throttle just cracked), you should look at using a smaller Idle Fuel Restrictor (IFR). I would not use a larger air bleed because that will delay when the main metering starts to flow.
At high speed cruse (Throttle open past transition circuit) tune with the main jets.
Replace power valve plug with power valve and see how the AFR looks when transitioning from cruse to power.