I really don't want to hijack this thread, but it is the stock Autolite 2100 2V, and the float is set to their specs. I've never had float problems that I know of.1). Your float was likely set too high. Some factory carb specifications, like Holley's) end up setting the float too high A gas smell in the garage is NOT going to happen when the fuel system is working correctly.
2). Your float bowl drying up was not normal. Although that situation can be difficult to diagnose, it's not impossible to cure. There is often a flaw in the carbcasting, and no amount of carb kits is going to fix that.
So let me ask you, how long does it take your fuel bowl to dry up? I mean, eventually it should- right? The bowl vent on this carb is linked to the throttle and when the throttle is closed the vent is open. The vent hole is uncovered with fuel directly below it and it is open to the atmosphere.
I've even had it on the bench with the bowl filled for days and it doesn't seem to be leaking down anywhere, but the fuel does disappear. I finally gave up and just considered it normal and due to evaporation. You're the first really knowledgeable person I've run across that insists it isn't normal. Its not exactly a topic that comes up often.
I wonder if this is a problem specific to this carburetor? How about it guys do your 2100s stink up the garage? Or just the opposite- do any of them NOT stink up the garage? Inquiring minds want to know!