Temperature difference between upper and lower radiator outlets

Just an update. Last two weekends (Halloween and Veterans Day) I ran hard and never saw temps over 200° in spite of the 90° air temperatures. Both fans were on consistently once the engine hit running temp and didn’t shut off but the relays held strong and overheating wasn’t an issue. Just before the first trip, I added Maxima Cool-Aid to the radiator (think Water Wetter) as I’ve used it in race cars in the past with good results. The engine temp was relatively quick to go from ambient to 195 and only rose to 200 after high rpm high load periods. I’m happy with it for now so long as the relays don’t burn up.
 
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