Both responses above are dead on, one clarification, 19.5" 7-blade clutch fan 50/50 inside a stock shroud, all upper fillers, lower filler/baffle, rubber fillers on both sides in front of radiator, 180* stock thermostat, proper water pump AND pulleys, correct timing, carb setup etc. This topic pops up almost weekly and if you do the research, anyone who has done ALL of the above, has solved this "hot" issue.
It all goes back to basics and installing ALL of the correct/OEM components that made up a perfectly working cooling system back in the day.
