radiator??

Hi Tracy,I,ve been racing my 408(410)all summer long and have had no overheating problems.I run a stock 73 318 2 core rad(re-cored)with a 7 blade clutch fan,eddie alumi waterpump and add a small bottle of water-wetter(BeKool)with a 180 stat...no fan shroud.My car never goes over 180,even on the hottest summer days.This summer alone I have well over 125 passes and never once went over 180.Alot of racers kinda laugh at my simple setup,but hey..it works.I,m gonna say you have some blockage in your rad.I,d try some additive to your water or antifreeze??Maybe bad/cheap antifreeze??Good luck.:D