65 Barracuda daily driver

So while I was waiting for the new connector to come in, I fixed some of the wiring of the old ECU connector and others. Including the temp gauge. I noticed that the temp gauge is now showing that the engine is overheating a bit. Before it was showing steady "normal" temperature. It would make sense that it's stalling and not starting again because it's overheating?! I guess I've been neglecting this engine because I thought I was going to swap in the new one a lot sooner.