340 demon overheating problem

i HAVE A 340 DEMON WITH A BUILT 340/450 HP 12.5 TO 1 COMPRESSION. aM RUNNING STOCK RADIATOR W ELECTRIC FAN, hAVE IN ITV NOW A165 DEGREE THERMOSTAT. tHEC CAR WILL RUN 220 DEGREES ON A 60 DEGREE DAY. THINKING ABOUT ADDING A FLEXOLITE OR CLUTH FAN TO ASSIST IN COOLING THE CAR. THE ELECTRIC FAN IS APPROX. 18 INCHES ACROSS. IT PUSHES AIR THROUGH THE RADIATOR . ANY SUGGESTIONS?
I run a HHR fan and Meziere 35 gpm electric water pump...Northern 2 row with 1 inch tubes...this is what mine reads at 96 degrees and hammering on it...I have since stepped up to a PRP-6660 50 gpm water pump but still yet to drive it...