I have a 180 in mine and have no overheat problems with a factory replacement 2-core rad. I believe the stock computer likes the car to run around 180 and will try to compensate if the car runs above or below.
John
__________________
John
1992 Mustang LX 5.0-Powerdyne BD-11A, 3.73's, FRPP clutch, chrome Ponies, Mac headers, Aeromotive regulator, MSD 6A, MSD BTM, FRPP 42# injectors, Pro-Flow Air Optimizer, Trick Flow Track Heat intake, Edelbrock 75MM TB, AFM Power Pipe