Last night I was coming home from daughters house in my '67 Fury hardtop with the 318 engine. The car was running really well until I came to a stoplight. It just died out and would not start. It turned over fine but would not run. I checked the carb for fuel squirting from the accelerator pump and fuel was not present. I tapped the needle fitting and got it to squirt fuel like it should and it started but died again soon after. When I bought the car last Janurary, the guy told me that the fuel pump had been replaced and it looked fairly new. I will try to go where the car is later today and see if the pump is in fact pumping. I bought gas earlier last night and I am hoping that it was not bad. I suppose that pumps like any other mechanical stuff can fail prematurly. I'll post more info when I get it.
John

Sound like it might be a carb problem more than a pump.

I'm wondering if the sock in the tank is partly plugged & intermittently stopping the flow & that was the problem all along. You might hook a can of gas in the eng compartment to the pump inlet which would tell you if it's in the pump/carb or rearward & I would check the neoprene line at the tank & maybe popping the carb top & see if anything looks amiss.

I found out that there is no fuel reaching the carb. I disconnected the fuel line at the carb and and cranked it over--no fuel discharge. I then disconnected the line at the pump outlet and no fuel discharge there either.I installed a used pump that I have and still no luck. When I get the Fury home I'll try the container under the hood test. If the sock filter in the tank is plugged can they be purchased or could I eliminate it and install an inline filter just outside the tank? Thanks for the info here.
John

Check to see if any rubber hose connections under the car are dry rotted. If they leak you won't have any suction.

Metal fuel lines can develop cracks also. I guess you could hook up a hang held vacume pump to the fuel line and see if you can draw fuel out of the tank.

I have had tanks full of crud that I was able to clear by removing the gas cap and blowing compressed air back through the fuel line. It will clear the sock and stir the the dirt up.Then siphon out the gas and most of the crud will come out with it.

5/16" factory socks are available & you can put a rubber tipped blowgun nozzle on the sending unit metal inlet & blast it to either blow the sock off or make a split in it & then add a fuel filter as you suggested & on a low rpm app such as yours adding it before the pump "probably" would not cause any vapor lock issues next summer but I think I would add it between the pump & carb which there should be one there anyhow. Taking off the sending unit is such a pain/dangerous I would for sure continue diagnosing & pinpoint the exact problem before I undid it & additionally some pumps wont prime when worn out when cranking because of the slow speed but will do OK when running but the pump is newer & you tried a good used one but the eccentric might be worn excessively. Holler back when you find out, inquiring minds want to know.

Had a similar problem in my '66 Newport. Look inboard of the frame rail amidships below the B pillar and see if there is a rubber tube about 3 inches long connecting two metal fuel lines together. In the '66 this is present on both sides. If it's there, it's probably dry rotted.