Battling overheating new 360 build

Are you saying it's running hot @ 200 degrees?
Also what champion radiator? I have the cc526 and the factory shroud bolts right up.
CC2374 radiator. No, the car is pegging H on the dash and my IR therm is reading 215. I'm trying to get the temps lower, but starting to think that it's just a hot running motor. I don't have a high-flow therm in yet, that'll be next