73 Mopar 340 not pumping fuel

Ok so I can not get my 73 340 to pump any fuel. I put a new mechanical fuel pump on, new rubber fuel line, new fuel filter on the output of the pump, blew air through the metal fuel line, cleaned out the fuel pickup, cleaned the fuel pickup screen. And when I have the fuel line pulled off the carb there is no fuel coming out. Anyone have any other suggestions?