how about changing the fuel filter?
my 83 carb truck did that and it was a fuel filter clogged. it would run fine for a while (15 min or so) and slowly the fuel line would depressurize and eventually the fuel supply would get interrupted causing surging, poor running etc... i guess i got some bad gas or something clogged it.
check that ( read ... replace
) before you drop the tank and check the pump..
my 83 carb truck did that and it was a fuel filter clogged. it would run fine for a while (15 min or so) and slowly the fuel line would depressurize and eventually the fuel supply would get interrupted causing surging, poor running etc... i guess i got some bad gas or something clogged it.
check that ( read ... replace