Did my test and found my issue. Turns out I had a hole in my fuel line immediately upstream of my filter. That sectio is (very) old hose. Everything after the filter is new, but also braided.
First pass (video began well after attempt to start normally, so system was primed).
After diagnosis, I found a small hole. Diagnosis was attempting to suck fuel through the lines (the old fashion way). My extractor is full of motor oil. Confirmed no vacuum.
The culprit. I think folks like
@HB Chris have warned against braided fuel line since it disguises issues. I don’t intend to use it in my restoration. The problem is only slightly visible from the outside. The big cuts in the hose are from the leak. The little slices are from my utility knife.
Second pass (Success!!!):
After some starting spray and some carb flames we have ignition. My garbage can took the brunt:
Not e3 related, but took it for a spin around the neighborhood. Such a silly juxtaposition...