Fuel delivery issues

Is there fuel in the tank? I know it is a dumb question but I have done dumber things,:rolleyes:

How many fuel lines does a 71 have? could you have hooked them up wrong? I know I know see end of question #1

If you think your issue is fuel pump not sucking fuel from tank do to dry lines you could disconnect the like into the pump and slightly pressurize the tank with compressed air, don't go overboard a few lbs should be enough to move the fuel. (USE EXCESSIVE CAUTION WITH FUEL AND VAPERS, a local guy blew up his garage with a portable heater and leaking fuel in his garage)