Radiator is a 22.5 tall 2 core aluminum rad to fit a 32 Ford chopped grill shell. Trans cooler in the bottom tank. Total cooling system capacity = 3.5 gal ( not including the heater core ). Fan is a Spal 16" electric fan = 1,604 cfm bolted directly to the rad ( no room for a shroud )- pic. I haven't been running a stat to try to improve flow through the rad ( less restriction ). Not sure if running without a stat is a good thing or not?? Fan controller is set to go on at around 185 / 190. With ambient temps in the mid / upper 70's, temps seem to hold around 190 - 200 both at idle and cruise ( 60 - 65 mph). Running a 3.55 gear so cruise a 65 = about 3,000 engine rpm. Any kind of load ( long hill, etc ) and the temp starts to climb. Seen it as high as 212. Haven't run it at 80 / 90 degree ambient temps yet, so ..... don't know what will happen temp wise? Also haven't run the A/C yet?? Think the gauge is accurate. Sender is located right next to the stat housing. Agree with some of what's been said so far on this thread. Hope this answers some of your questions.