[Brad54]

This is why I always install a clear fuel filter between the fuel pump and the carb; it will always tell you if you’re getting gas to the carb. That piece of information will always tell you if the carb is the problem, the fuel pump is the problem, or the tank is empty. At which point it will also tell you if your problem is electrical.
After you topped off the gas tank, did you drive home with no more trouble?
What were traffic conditions like?
I had the fuel pump take the big dump on a road trip once, and in 3rd gear at 55mph, engine vacuum drew enough fuel thru the pump to keep driving. (3rd is 1:1 on that trans) that was with a 4bbl carb.
Below that mph, and it did just what you’ve described.
I even stopped at the gas station to top it off.
If you have full gauges, look at the temp gauge while you’re driving: if it’s running hotter than normal, it’s running lean, which also points to a dead fuel pump.
(I zip-tied the Choke closed and drove home breathing through only the secondaries, to create more vacuum. Got 250 miles home with zip ties as a fuel pump!)