That seems about right. I was close to that with my H70 (single 120 rad). I think that you still need a larger rad to keep the temps down when overclocked. You cant go wrong with an RX360 rad up top with some AP-15 fans (if you can find them). That will keep your CPU nice and cool while overclocked and give you room to expand to a GPU in the future.
EDIT: Better yet since you already have the 120, keep that mounted on the rear of the case and put the 360 up top. That will give you more than enough rad for future add ons.
that is my plan! but i need your input.
right now i have res-pump-120rad-cpu-res
if i do res-pump-360rad-120rad-cpu-res
would i need to add another pump? idk if my mcp350 can handle that.
thoughts? if i got another pump it would be a mcp355.