Carb's fuel bowl losing fuel, evaporating

[Tester]

You asked this same question back in 2021.

70's Ford truck carb problem

302 engine. Autolite 2100 2B carb. Relatively minor problem, but annoying. After sitting 48 hours most of the gasoline in the fuel bowl has disappeared, which makes for longer cranking when starting the engine. When I removed the carb for a bench inspection, the fuel bowl was nearly empty & there was a thick, almost dripping coat of gasoline on the throttle plates. More on one side than the other. The power valve’s vacuum compartment is completely dry. Thinking it still might be a probl…

Tester