Geez I would love to help but my 975 hp car runs perfectly cool when I drive it locally around KC, no thermostat either, lol, and race it but I only have a 2 row 1.25" core Wizard or a good Griffin same spec radiator would work and I also only have a 2400 cfm pusher style fan with no additional shroud and all the experts repeatedly tell me it can't work as good as their setups so in closing i'm sorry to not be able to help but I obviously don't know what i'm doing, have all the wrong parts and just plain lucky or lying so you will have to go back for more flawless advice from the "experts"