The same tools for tuning efi are availabe for carbs, Wideband 02's and dyno's. There really isn't any excuse for driving around with a ring eating carb anymore outside of shear laziness and maybe being one of those people who's commute to work is so short that the choke never comes off.
Even the old narrowband 02's just hooked up to a digital volt meter really helped me dial in a thermoquad 20 years ago.