My '27 has been running poorly lately and I spotted A problem with the carburetor today. I'm not sure it is The problem however.
I'm sure you are not supposed to have fuel mixture spraying out of joints in your carburetor. My leaks are in the heat riser tube. Fuel actually sprays about an inch high around the junction of the tube with the float chamber. It only bubbles out at the top.
Video of Vaporizer leak
So that tube needs sealing. But, that tube should be operating in a relative vacuum! So I can only assume I again have a compromised vaporizer heat plate.
At least that is my assessment, what's your's?