Carburetor loses prime after 8+ hours

OK so I just went out to the car and clocked my fuel line off the carb to give it some elevation. That seems like a good idea. I also took the line loose, and turned the engine over. the fuel is in the line, just not the carb.

When i pump the gas, im getting 2 squirts from the jets and then nothing. so the carb is leaking down and im pretty sure i can rule out the fuel pump and backward. Carb it is, right?

Are carters bad about this?