Tunnel ram or no tunnel ram...

OK vacuum leak was there for sure.
Now I can drive the car almost normal but lean spot is still there. If I slowly accelerate there is a point when it starts running rough because it’s very lean. The same thing happens when I try to cruise in 3rd gear, at low rpm. I get 15-16 afr. I tried smaller iab and it does nothing.
I had to remove power valves and small jets because it was extremely lean.
It’s now back to 78 square jets, I need to try 77 all round because its bit too rich.
Idle is better but I noticed that fuel level fluctuates. I set it right with car standing. I get great idle and then when I start moving, drive and go over some turns and fuel level is almost max which causes rich idle. What would cause that??
Overall I have the same impression as at the very beginning, which is a lot of power but not much consistency and unstable cruising.