I installed it in Aug of 2011, and removed it in November of 2011.

Don't know how hot it got, but the gauge never pegged. Could the gauge be off? Maybe, I bought a restored set and put it in, but I guess it could be wrong. The car did get hot, I found this because I tore it down to rebuild it for other reasons. I just happened to find this while taking it apart.

I spoke to the guy at cool carb and he said he had this happen only once before, and it was also with a BB Mopar. My reason for posting about it is to recommend you keep an eye on it. If you don't overheat, you'll probably be fine.