This carb is driving me crazy. I went down to 75 jets and it's still 12.8 - 13 af at cruise. If I get in the throtle at a light cruise I sometimes feel a small hesitation and the af goes lean to 14.5 then goes rich.
At various times when I leave a traffic light, from first gear to second shifting at 3000-4000 rpm it falls on its face and the af goes to 10.8.
I installed a vac gauge and cruising around just holding a constant speed at various speeds I see the vac at 15 inches.

I did a small wot pass and I saw 12.2 af.

What is next?

Current setup primary 75 and 6.5 pv
secondary 80 and 6.5 pv