Lean condition under light acceleration

Hi All
I am having this issue with a Thermoquad but assume that the method for addressing it is similar for any carb using metering rods. I have done some searching (maybe just not hitting the right keywords) and have not seen much on this topic. If there is a thread I have missed, please point me to it.

The lean condition is encountered under light acceleration or while engine load increases at constant throttle (climbing a hill).I have a wideband in the car which is aiding in tunning the carb. In addition to the gauge indicating a lean condition (16 to 17 AFR), I can feel it in the car as well.

Currently, the AFR is good while at cruise (13.7- 14.5, I could probably richen this up a bit) or under WOT (high 12's at the moment). I also have the secondary transition pretty much dialed in.