Being just up the road from you, I want to +1 on the stock style mech pump with the cast impeller, big radiator, OEM shroud and the OEM 19 inch 7 blade clutch fan. It works for me. And my 400 model issued block off plates, air dam, and side mastics are not installed yet. My car hardly ever exceeds the 185 degree setting of my thermostat.
On the other hand, my radiator IS a pricey aluminum unit from Rodney Red
I find that most of those who come here with cooling issues have electric fan setups.
2012 Mustang Boss 302 #1918, Competition Orange. FGF replacement 2006 Mustang V6 Pony, Vista Blue. Factory ordered. 2019 BMW X3 (Titled to the wife, but I'm always driving it for her. So I'm claiming it) Old projects, gone but not forgotten: 1967 FB 400, original CA car. After 22 years of work, trashed by the guy who was supposed to paint it. I had to sell it. 1980 Turbo Trans Am 1970 Mustang fastback, 351C 4Bbl, auto 1988 Mustang GT, 5 speed 1983 F-150 4x4, built 302 1994 Chevy K2500 HD 4x4, 454 TBI
