Well, so I got new cooler lines installed, which was fun because they didn't fit at all. Should've just bent up new ones from scratch, but I made them work and it doesn't leak. Then I reset the points gap/ignition timing and took it out for a drive. After a few miles of warming up I wanted to see if the misfire was still there so I pinned it. Somewhere around 30-35mph the engine just.. quit. No funny noise, just like I turned the key off. Rolled into a parking lot and after poking around I found the distributor wasn't spinning. Got towed home and after more poking I found the distributor to be fine, and the cam isn't turning. I'm not looking forward to pulling the timing cover off.. Not sure what could've happened either. Maybe the cam bolt backed out and it sheared the pin? Pretty sure I put loctite on that, and I used torque wrenches for everything in the engine..
Stay tuned to find out, I suppose.