[Chaplin]

Steve-
I also have an FE from Southern and I run a 180 t-stat and 14# cap, and the motor runs very cool, I don't think the temp gauge has ever gone above 85C, regardless of ambient temp or traffic conditions

Here's a thought, have you checked to make sure that your temp gauge is accurate? If your temp gauge is reading erroneously high, you might be fooled into thinking it's overheating by watching it dump coolant, when in reality it may just be getting to the proper fluid level.

For example, wven though my motor never ran hot, when I first ran it, it dumped coolant all the time and every time it did, I added more. Eventually I stopped adding coolant and eventually it stopped dumping coolant. Now it never dumps coolant or runs above 85C. Also, follow the advice about air pockets- jack the front of the car up as high as you can get it, run it for a little while and burp the air out and try to see what comes out. I read once that someone jacked their car up, burped the system, and then let it sit for 24 hours, did it again and got more air out.

Good luck.