[barabar]

Doc, Arnie here. I'll give you some info that will cool. There is a rule of thumb to use when cooling engines. It is derived based on HP--500HP and below, 2 rows 1" aluminum cores, dual fans, flow 3300 cfm each, 10 gauge copper wire to each fan, complete shroud, high flow 180 degree thermostat. high flow mechanical water pump. 600HP and below----1 1/4" cores and the same criteria as above. 700HP and below---1 1/2" cores and same criteria as above. As a couple guys stated, make sure all the air pulled goes through the radiator. You might have to fabricate a shroud from the nose to the radiator. This should work all the way up to 750HP. Yes there are things you can do---Timing, water fast or slow cfm. When you get much over 750HP your not to streetable and would probably reconfigure the cooling system anyway. Good Luck.