I decided since my car is waiting on parts I would do a few extra things. I installed a second engine lid screen and added two fans. The fans are out of a Toyota Supra. I had to cut and shape the fan shroud structure and make a shroud to fit up against the lid screen. They are there to help keep intake manifold temperature down at low speeds on real hot days. I am designing a switch that will turn off the fans via road air speed.

Do they suck air in or blow air out?

I will use them at low speeds, stop and go traffic so they blow down on the intake manifold. Once road speed is achieved they will turn off. I sometimes have intake temps of 160 and coolant temps of 170 go figure. My cooling system is so over built its something I have to often regulate. I wont run a T-Stat, I have a restrict because with this pump design its more reliable for me to do it this way rather than risk blowing out the pump vanes or pushing off a coolant line. I've bent one pump to date.