68 Valiant dies and runs lumpy, then suddenly runs fine.
Ok, done more work. Tore down and remounted the carb to make sure everything is sealed, and replaced the throttle shaft with the one from my spare carb. Replaced the cap, rotor and the fuel filter with one that's clear. It gets fuel pretty well, but I'm probably going to try to blow out the lines just to make sure.
The 'alternator' gauge is still going wonky from time to time. I decided I'm just going to replace all the modules once I'm back to my job.
For now it runs good 95% of the time, but will stutter and occasionally die as I pull up to a stop. Otherwise it idles fine most the time at a stop, and really smooth in park.