Quote Originally Posted by southerner
I would check for other reasons thermostat, air flow, fan speed, type of fan.
What type of vehicle is it in ?
Thanks for the good info. It's a 1982 Jeep CJ7 with this V8 swapped in. I think the problem was due to combination of timingadvance, .030 over, and unreasonably crazy cam.

I run a full aluminum radiator, and dual electric fans.

After I re-do the engine this winter (new cam, etc), I hopefully will have eliminated the cause. There is (after this swap) no good reason why it should still run hot at all. Putting in a Edelbrock higher flow good quality water pump, higher flow tstat, and should have everything in good tune after this.

Thanks again.