Yes, there was some flow of gas, but my fuel pressure gauge was reading close to zero. Normally, it's about 6-ish psi. Occasionally, the fuel supply was obviously zero (even without the gauge) as I'd quietly coast to dead stop. I'd turn everything off, sit for few minutes, and try again. Four bouts of that finally got me home (I was only about 10 miles away).
The overall pre fuel pump filter is relatively new. I did remove the bottom plate of the Holley Red. There was nothing obvious going on in there. The fuel pump is making a worse than usual noise. Groaning and a little variable is the best description.
I agree about the replumbing task being more difficult than just replacing the electric fuel pump, but the failure got me thinking. Sometimes my mind is just happier with one philosophical approach over another. I keep leaning towards the simplicity and safety of the mechanical fuel pump, so I was just curious how others have solved the Canton adapter and
oil lines being in the way.