an impala riddle, help please.

Any help would be nice. I am getting no fuel to the carb. I changed the fuel pump even though it is getting suction. The new fuel pump is giving me the same results. All of the sudden, out of the blue, I started my 68, got about 2 miles down the road and she stalled. I waited about 5 mins. and she started, for another 2 miles. This continued till I got her home. I changed the filter, no avail. then the pump, no avail, and now she won't start at all. Yes, the car does have gas. Now, I opened the line to see if fuel would pump out from the pump itself, and whaala, nothing. I would say vapor lock if it was hot, but she ran fine in the 110 degree weather in Tucson, Az. Now it's in the 40-50 range and no dice. Any help would be nice. It is one of two cars me and my lady use for work, so I have 1.5 days to get it started again. Thanks

Any help would be nice. I am getting no fuel to the carb. I changed the fuel pump even though it is getting suction. The new fuel pump is giving me the same results. All of the sudden, out of the blue, I started my 68, got about 2 miles down the road and she stalled. I waited about 5 mins. and she started, for another 2 miles. This continued till I got her home. I changed the filter, no avail. then the pump, no avail, and now she won't start at all. Yes, the car does have gas. Now, I opened the line to see if fuel would pump out from the pump itself, and whaala, nothing. I would say vapor lock if it was hot, but she ran fine in the 110 degree weather in Tucson, Az. Now it's in the 40-50 range and no dice. Any help would be nice. It is one of two cars me and my lady use for work, so I have 1.5 days to get it started again. Thanks

Sound like pickup screen in fuel tank is clogged.

What about the fuel pump pushrod?

Ditto the pick up screen. Any rust on the old filter?