'72 240z fuel pump issue

[tad36]

Hello everyone,
I've recently started back on getting my completely stock '72 240 back on its way to recovery. Me and a friend with much more technical knowledge than myself completely rebuilt the engine four years ago, it ran ok and my next step was to rebuild the dual SU carbs which finances and my friend moving away put on hold. Business took me away for a solid 16 months where the poor thing sat untouched. Now when I tried to fire her back up I'm not getting any fuel and was wondering if you guys would have advice on what sitting there for that time could do to my fuel pump. What I've done to bring me to the decision that is where the problem is.
1. refueled the car.
2. Blew in the fuel line and did hear bubbles in the tank, making me believe there is no clog.
3. Ran the car on starting fluid for a good 20 secs, revved it up a bit just to see if it would engage, no luck.

Would you agree that the pump is the issue? If so what could I do to fix it(if I can't fix it they are pretty cheap to replace, but I would like to try!)?

[evildky]

is there fuel in the fuel bowls? a stuck needle valve can keep the bowls from filling, if you disconect the fuel line form the jet does fuel come out? often the floats breakdown or particulates make their way into the fuel bowl and cloc the rather small fuel outles at the bottom, might be as simple as pulling the floats and cleaning out the bowls

could also be a bad pump, have you tried putting the line to the carbs into a bucket when crankign the engine to see if fuel comes out?

also the pickup in the tank can be partially clogged, enough that air can pass but that the weak stock pump simply can't pull the fuel through it, the stock pump only puts out 2-3 psi (anymore overpowers the needle valves)