[AZKen]

If you can find and install a pump, that would be a good move as said. Normally you would do a fuel pump flow test. Unhook line at carb and let it into a container during cranking. Need to see a strong steady flow/pulse for about 10-12 sec. Should fill up a water bottle PDQ. This is done with coil center wire taken off for safety. If it's weak or not steady flow then it's a fuel delivery problem. Pump on back to tank, as said. You also want to see down carb throat for squirting gas as throttle actuated. (not running/not cranking)

If test fails
1. Pump
2. Clogged/collapsed rubber line
3. Clogged fuel filter
4. Clogged pick up tube at tank
5. Gas cap not venting

Test is good
1. Carb
2. Vac leak
3. Bad gas
4. Coil
5. You don't want to know