UPDATE:
My last issue was the WOT shift point was showing 13.4 A/F with the 075 secondary jets and my 50/55-WOT rich spike was getting better at 12.4-12.6 after adding more gap at the secondary pump cam/arm.
I swapped out the 075's for some 078's and now my WOT A/F is good at 12.8 but my rich spike from 50/55-WOT came back rich around 11.8-12.0.
I will add some more gap at the secondary pump cam and see what happens.
I also tested a rolling start to WOT and found a 11.8 A/F spike reading at the rolling start and it leaned back out the the 12.8 mark at the shift point.
So back to leaning out the secondary pump. I am still wondering if swapping out the 40% secondary linkage to the 60% delay may help a touch.

This is my latest carb setup:
62/78 jets, black/037 & black/031 (+ gap), 9.5HFPV, N=1000rpms @ 14.5"hg & 13.0/13.2 A/F
D=900rpms @11.5"hg & 13.6/13.8 A/F
Notice how much richer the N idle is compared to the tranny being in D with the foot on the brake. I tune the idle in D so I let the N reading fall where it ends up.
30mph= 14.0 A/F
40mph= 14.6 A/F
45mph= 15.4 A/F
50mph= 15.0 A/F
WOT = 12.8 A/F

I have always noticed a lean jump at 45mph for several test drives now. It is usually my leanest cruise reading. I did not check it today but my 3500/4000rpm cruise has been in the 14.0-14.2 range with the 62 primary jets.

Back to secondary tuning.