Greg i still think you have a coolant flow problem. I would make sure i had atleast 3 row radiator, correct water pump as the new platinum pump bolt pattern is the same but different shaft and impeller dimensions and thermostat. Be sure to bleed pump housing and use 50/50 mix coolant. Use an infrared laser thermometer and shoot top of rad and bottom of rad. Should be atleast 40 to 50 degree difference in bottom than top. Remember that most of the cooling is acheived on the outer perimeter of rad. Check for dust build up in these areas. The Turkish import rad i think came with two strips of metal running horizontal across core. I had one awhile back in a diesel that eventually got a 10 blade fan. A thermostat is a must as most will overheat without. Check for obstruction in counterweight and muffler is in good shape. These problem can drive you crazy at times.