Need Quick Fuel carb tuning assistance

the closer I get to 2700ish rpm it will start to drop on the AFR to high 12's or 13",
This is upside down. Should be leaner.
It's right in the area where things are transitioning off primary idle circuit and the mains are starting to dominate fuel supplied to the engine.
If the primary block has three e-holes and they are around .026" then they are a possibly culprit, or one of the culprits.