Ok, got it started. I had to stretch the vacuum hose to the distributor and I think that kinked the hose. Once I swapped that out with a longer hose it started right up. Go figure.
Fast idle was way too high (2200) and the fast idle screw is comically hard to adjust. Then when it warmed up it wouldn’t idle below 1000.
I had heard of this happening before. The spacer they provide is… crude. I suspect air is leaking under the carb.
I decided to pull the carb and look it over again. That led to a bunch of drama when I couldn’t find one of the washers. I feared the worse, that it had fallen down the intake. Lots of searching until I wandered outside in the dark and found it where I had turned the carb upside down to drain the gas.
Anyways, I didn’t like the way the primary butterflies were sitting so I loosened the screws and resat them. I looked over things carefully and the fast idle screw had a crooked tip.
Not sure if it apparent in the photo. I filed it flat.
I’ll get the carb back on and hopefully get the idle down. I’m going to try a light coat of sealant on the spacer. Hopefully that does the trick. I might also read the instructions and see what it should be torqued down to.