All great comments and suggestions above.
You really need to develop a "tune-up", even plot it out in a graph if you can, you must know what the AFR is across the rpm range, And I'm not talking about 4000 rpm or 7000 rpm.. but your "normal" range. You really need to establish a baseline and then test and tune the problems out. I'm not overly familiar with your setup (cam / heads etc.) but I'm not a fan of "extreme" components generally. But that's just me.

I'd try re-adjusting the needles as Jerry suggested above. Perhaps just do the fronts and see how it reacts. Also move the timing up some and see how it reacts to that. But note the changes and the results - if it reacts badly then you can save yourself a step instead of repeating the mistake.

Also, do you have a target AFR in mind? I ask because I'm curious if you'll settle for something close or are you trying to reach a goal.