Is it my fuel pump

[geasson]

My 1966 GMC 1-ton has been sitting way too long and so today I went to work on it. It has a new tank, good gas in the tank but it is NOT getting gas to the carb. When I disconnect the line from the carb and just crank, I get no gas. BUT when I removed the pump and operated it by hand, it squirted gas with no problem Do these V-6s have a rod that pushes the pump, or do they directly touch the cam shaft?

Thanks

Should I just go with an electric pump??