Well, I have had 9 engines in my car over the years, and this latest World Iron block is tough to keep cool...I have a very good cooling system.....Yet it seems on a hot day, I can't keep it from getting to 215....I have the engine out right now to put new valve springs in it, and its for sale, but if it goes back in, I am going to put in a newer style 4000cfm fans...I am right on the edge. It will cool down on a long cruise, but not in traffic once it hits 200....

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk