Thanks for all of the help guys! In answer of a few questions

1 - Temp is getting to 210 and higher at long lights
2 - 10 degrees initial timing with vacuum advance hooked up above the throttle plate.

3 - Already have a 160 thermostate...was the first thing I tried
4 - Have water wetter as well.
5 - Engine was brand new from GM when I bought it.