Well,
carefully took the carb apart being careful not to spill any fuel so i can examine the fuel in the bowls. After removing the lid, the right side was half full and the left side was about 1/8 full, just about to the top of the jet. I filled both bowls up with fuel, but there was no leaks coming from the plastic transfer wells and the epoxy looked good. I even tried to twist them apart but they didn't budge. Floats were adjusted properly and held compressed air when the top was inverted. O-rings may not have sealed perfectly as one looked a little crooked sitting in the body. I will replace the o-rings and see what happens.

While your in there take a good look at (or replace) the needle and seat. Trash may have gotten on them.

Sometimes it takes a bit of time for the leak to show up on the wells. Put the main body on a flat surface and put some kind of liquid in it and let it sit for a few hours or overnight. When you put it back together make sure the main body fits smooth with the base. There are dowels on the bottom of the main body that sometimes need a bit of filing for a good fit.

Thanks for the additional input. Needle and seats hold air pressure from my compressor so they should hold fuel. Also, when I looked down into the carb past the butterflies, the top of the intake was soaked with gas, not just a couple of drops. I was definately expecting a crack or something more obvious like a dislodged well but everything looks fine. It ran fine for 2 years then something happened overnight. If it were a Holley, I would have said a power valve but not the case here.

I have 3 cars with thermoquads and the alcohol in the fuel used now is a solvent and will eat through the factory epoxy, jb weld, moroso epoxy, seal all and probably most other glues and epoxies. Believe me I know. If you put the bowl over a 2 lb metal coffee can fill it with fuel and leave it for a couple of hours you will see gas leaking out. The only thing I have found that is mostly resistant is marine tex grey epoxy. I have repaired at least 6 bowls for myself and others that were told that the thermoquad carb is a lost cause. All my cars are running ok and have had no leaks for at least 2 years.

Surfman- I might be having seepage after a few hours, but gas is dripping into the intake and soaking the manifold after a few seconds of shutting off the motor. My problem is not the epoxy holding the well cap on.

I'd use same gas to check for leaks. Gas, or similar oil products ( thinner for example ) goes easier by tiny cracks than water.

THIS IS SERIOUS? DO THEY HAVE PHENOLIC BOWLS!!! thats AMAZING

wondering what kind of them... here are several dozen of them depening on carb PN

Do a search on Ebay for Thermoquad you will find all kinds of small stuff like that.