Yeah, I know a dirty carb is not necessarily a bad carb. In fact, often the dirt and grime help preserve it.
But after looking at them again, both carbs are in about equal condition, including the throttle shafts. I'll probably use the Italian one with the plastic floats since the linkage is already set up.
No drippage in the throttle bodies as far as I can tell. I swapped in the plastic floats and it feels like it might have improved slightly, but the problem is still there. I haven't noticed fuel starvation issues on full-throttle runs. What should the level be for the plastic floats?
Yes, a wideband would be nice, but they're too expensive for me.
A narrowband will have to do, as non-ideal as that may be.