90 lumina 3.1 not starting after filter replacement

I just replaced the fuel filter on my 90 Lumina Euro 3.1L. The previous owner probably never changed it as it was still an AC Delco part. I was able to get the air out of the lines by starting the car with starting fluid, but it would not start on it's own until I waited about three hours before I tried again. It finally started and idled fine, but when I hit the accelerator, it died, and would not start back up again. I replaced the filter because it seemed to be starving for fuel and left us stranded beside the highway, where it would not start. It started after we got it towed home, and again this morning before I changed the filter.

Could it be a weak fuel pump, even though I can hear it running, and the pressure seemed fine when I changed the filter? I don't have testing equiptment to check the pressure.