I'm running this cooler:
https://www.summitracing.com/parts/der-15845/overview
My setup goes engine > AMSoil bypass oil filter assembly > Improved Racing oil thermostat > Derale cooler > back to engine. All -10AN. I control the cooler fans manually today but Holley EFI will when I do the swap.
According to Dave@Redline, 212F is the minimum temp you need to keep your oil at in operation to better remove combustion byproducts, moisture, and fuel.