New DR150 setup

this is my new room. I am very pleased with this tent. heres what I got going. sun system 600w, hydro, co2. what is the average cfm needed for the cool hood? temps staying in the 76-77 range. any suggestions or input are welcome...

a 4 inch inline puling about 150 cfm will do fine for the hood, plus you want to vent the tent also unless your pulling air from inside the tent to cool the light