I'm "carb-stupid". :( efi is pretty simple to me, carbs may as well be from a crashed alien spacecraft. all depends on what you're used to I guess. :dunno:
Not that I think it'd change anything, but I do believe that there's an adjustment technique required for new TPSes.
I'd also suggest a can of gas stabilizer or octane booster. Might help if it is indeed bad gas and it's fairly cheap to try.
out of curiosity, do you have the original cat on it?