Update: Smoke DID burn off. Seemed to take forever, but done.
new gaskets in, smoothed off some of the pitted pot metal & added permatex
Leaked fuel at first (where the line connects, not the gasket); I as being shy with the wrench; tightened up and it's dry, so ... running pretty well!
Now that vacuum, smoke and leaks are not an issue, I think I need to adjust timing. I'd done that before but wasn't confident in it and it's pinging under load.
Spent a few hours cleaning junk from the bed where it had become the crap repository. Family is on notice it's a truck again.