Finally time to start tuning!

Went down 2 jets on the primary and one on the secondary to 78/70, AFR is now 13.5-14.0 on the highway, starts out 11.7 then leans out to 12.5 at 5000rpm WOT.

Put the 80's back in the secondary bowl and it goes as rich as 11.0 WOT.

Should I try changing bleeds on the secondary to get somewhere between 12.5 and 11.0 WOT, or put the 78's back in and leave it 12.5?
I would run 71/78 nothing wrong with 12.5 WOT. You will find cooler air will lean the AFR a little, as in warm afternoon cool night air. If it cruises good with the 71 leave it alone. If you find in the future you are running lean at WOT in the front cylinders put larger PVCRs in. For example you currently run a .046 PVCR put a .052 in. Air bleeds change the fuel curve, smaller starts fuel flow sooner bigger later.
Tuning WOT is hard since you are only WOT about 5 seconds. Best to tune WOT at the track.