Glad to see you back on here @dag1401 !as canadiankodiak mentioned the fans will turn on naturally and turn off naturally.. how do you know your actually running hot? Do you have a sensor tied in to your coolant system and your going over 212f degress when fans kick on and wont cool down below that?
I really was chasing heat issues on my grizz after i installed my 778 motor with +2 valves, bored throttle body, ehs stage1 topend, +5 stroked bottom among other things i did to the grizz going after power. All afr's tuned correctly through the rpm band up to 8k rpms. I would get to a point where the fans would kick on at 210-212 and the stock fan/cooling system wasn't enough to keep the system cool when running really hard.. temps would continue to climb past that and not cool it down. If you really want to you can do what i did.. install a 3core radiator.. run engine ice.. install an aftermarket SPAL fan to replace the existing. This fan puts out waaayyy more flow than stock. If this still isn't providing enough.. i also installed a second battery.. installed a second SPAL fan ran to that battery to go on the front side of the 3core radiator, pulled my thermostat out so i have full flow all the time no restrictions, and also traced out and ran dual override switches to manually kick both or individual fans on whenever i want to. In the hardest conditions i can now run my grizz at 180-200F with easy.. temps monitored ..
Again I'd say start with monitoring your temps to see if you really are truly running hot.. Get a trailtech or something similar and wire it into your water lines just after your cylinder.. this will tell you your temps coming out of your motor at all times and go from there....