Thank you guys very much for your help and direction. I bought a set of gauges to start my diagnosis, and have a Bentley manual.
One interesting thing is that when I hooked up the gauges there was 0 PSI reading, including after bleeding the gauge.
So I took a spare length of hose I had laying around and hooked it up directly to the FD line dumping into an empty bucket. The fuel is dribbling out, not consistent and strong like it should be. I don't want to start replacing things arbitrarily, but could this be a pump/filter issue, or even a FD issue?
I put the jumper switch on the fuel pump relay and it starts right up and sounds healthy.
I'll take a look at the filter in a bit here.
Here’s a quick video showing the fuel coming out of the FD line:
https://youtu.be/JMnbHg2UDTc