Boy, JP, you weren't kidding! My daughter and I bundled up and took the car out...top down. It was in the mid-40s. To be honest, it was no worse for me than riding a bike in similar conditions. And, yes, we got more honks and waves on a relatively short loop than I have on far longer drives in the summer.
The car drove well. I think the mixture is a bit off again, but that's probably a weather-related issue. Also when I turned on the headlights, they went direct to high-beam, and pulling back on the high beam stalk did nothing. I'm pretty sure that's a case of getting my wires scrambled on the headlight switch. Other than that, I was very happy with how the car performed. Again, with the vacuum line from distributor to carb replaced (and not leaking), the car's idle was smoother than I've ever had it before.
EDIT: When I went to go troubleshoot tonight, the high beams worked properly. I think the car was on low beams, but sometimes during the day, it's tough to tell. Sometimes I feel like the Randy Quaid character in Christmas Vacation "Gets kicked in the head, eyes crossed. Gets kicked in the head again, eyes uncrossed. Go figure."