I have baffled myself and I don't know how - spare connector
Finalizing everything and trying to fire up after a motor swap/upgrade.
Smog pump and EGR gone, so those connectors accounted for, as is power antenna. I still have 1 more 3-wire connector hanging down from the harness with the smog pump lead. Not for the coil or ignition module, seems, as I have something buttoned up everyplace else. Also doesn't appear to have been an unused one, as it's clean.
96 SS btw.