Mechanical setup

you can't get it under 205/208 with the fans on? That isn't that crazy hot but I wouldn't want to see much creeping past that.

you really can't beat the twin fan setup. Nothing pulls air at idle like that. Not to mention the advantage of running them when the car is off.

I'd question a couple things in your setup.

1. Are you running a restriction ring in your pump? You need to. I always run a gutted thermostat. You can buy the rings if you'd like but it made sense to me to just run the equivalent of an open stat.

2. Not all fans are created equal. Check out the stats on the electric fans you have.

3. Radiator. I've found the more the merrier here. I've seen first hand my 440 running around where yours does, changed to a bigger radiator and run 180-185 all day with ease. I run a BE cool 1,000hp model which is a bolt in designed for our cars.