Carefully poor fuel into the float bowls to just cover the wells; an eye dropper or syringe is a good idea, as too much fuel will run over the edge making it seem like you have a leak...when you haven't; look for fuel weeping from the wells.
I used gasoline and it took forever but finally was able to find a tiny damp spot on a toilet tissue on the passenger side. On the driver side either nothing or it took forever to find any damp spot.
I used alcohol for another check afterward. Same results but it took even longer to find anything.
Since I turned the carb upside down a few times before disassembly to drain fuel out through the three carb vents, I don't really know how much fuel had collected in the two little wells. Now that I find how small the seepage is, I might not go to the trouble of tearing them off and re-attaching (might make things worse).
I did order a product RustyRatRod recommended in his Thermoquad rebuild article called "Seal All". I don't normally believe coating things on the outside are effective, but in this case I might just put a thin coat of the Seal All around the existing epoxy.