Anyone have 2 barrel carb ?

You could probably route [the carb bowl vent] to a tank return line

No, that would be wrong. We don't get to just randomly connect this thing to that thing, or this hose to that line. Not if we want the car to run and operate correctly. Not if we want to avoid creating extreme safety hazards.

Doing the job right yields better results, and is no harder than doing it wrong.