OK..new update. It appeared to be running much better, but still seemed to get a bit warm..not bad, but I still wouldn't want to take it out on 100 degree day (no AC, so I probably wouldn't drive it anyway).
I just got an infrared thermometer and was testing it out. After driving in traffic the gauge said a little over 200 when I got home. I shut the car off but left the gauge on (yes, I can do that). The temp gauge climbed a bit to 210, continuing to soak up heat from the block.
HOWEVER - while it was reading 210 on the gauge, I put the IR probe on the intake right at the temp sensor, and it only read 182! So now I need to ohm out my wiring and check connections, because it appears my temp gauge on the car is reading over 20 degrees hot!
...and no, it wasn't come cheap IR gauge, it was an $80 unit from Grainger.