Time to give up on the Thermoquad?

Been fighting to keep the original Thermoquad on my Duster for some time now, but just about to give up. Ran fine when I first got it running again, only a slight surge/miss at light throttle cruise which I figured was too much initial timing. Well, the surge/miss is getting much worse and so I pulled the carb apart to see if I could see something wrong.

Only thing I can see is there is gas in the upper well on the passenger side (next to the choke, where the metering rod drops in), and it looks like the sealer I put on the main jet wells is getting gas on it as it just pealed of and felt like soft rubber (used the same stuff Demon Sizzler used). Tested the wells with some brake cleaner and they do seem to be seeping. Can't see why the wells filling with gas would make it feel lean, so I don't think that is the issue.

Can't see anything obvious, thinking about putting the Carter Comp Plus I have on the car. Really don't want to do that, I like how it's run before, but I can't see the problem.

Just as background info, this is on my Duster, low comp 360 with MP R/T heads, '00 Ram 5.9 roller cam and M-1 dual plane with an adapter for the Thermoquad. Tried plug wires/coil/ecu, but that didn't change a thing.

Any thoughts on what might be wrong before I give up?