Bliss It's not that simple what you are asking. Don't know make of car but there are differents with each car.
ERA car have a radiator set at and angle laying back with a air deflector or 2 mini cooling fans. Other kits have a straight up and down radiator which works a little better for air flow. There have been threads about having and no have the small cooling fan in the front of the radiator because of blocking air flow or redirecting it. The fans do look cool running.
Aux
oil cooler in the front end of the car, They work well but some work too well and the
oil never gets to the right working temp for the best lubing, protecting the internals, and correct temp. A
oil thermostat housing is the best way to go to help get and keep oil at the right temp.
Radiators, Some are aluminum and some are Bass/copper. I have run both. I have an 482 all aluminum motor and it heats up to temp in 3 minutes. OIl temp takes about 5-8 minutes to get into it's temp readings I do and a aux oil cooler on my car. The temp reading gets to about 190-200 from track running. Coolant temp is also in the 185-193F readings. I have not checked with a lazer temp gun for correct reading but know the gauges are close.
Thermostat this is and was a big problem I had with my motor. The FE thermostat doesn't flow enough water in my car with either radiator. ( I have a griffen 4 core in there now) I have found that using and a small modifying of a Dodge RB motor thermostat has greatly improved and does a better control of flow to the motor. We are allowed to run water and waterwetter at some track only. I do have the air deflector in the front end and not the 2 small fans. I have other tricks to help get the hot air out of the engine compartment. Heat shields, louvers in the hood and wrapping of the exhaust. Heat in, heat out. getting back to thermostats, The dodge one is 1/2" larger flow hole than the FE motor one. You need to trim 2MM off the out side edge to get it to work in an FE motor. Make sure the bridge top clear both ways. That's it. You will see a 20-30F drop in temp when this big boy opens up. I run a 180F stat. The temp will vary about 5-10 degrees on 100F days. Getting the hot air out of the engine compartment will help keep down temps.
YOur question, You didn't say what oil you are running or what fluid is in the cooling system, Out side numbers, Max 220f coolant temp, Max 240F oil temp, again this is all depending on fluids being runned. This is with a stock oil pans and water pump. Stock pulleys also on the motor. You will have some problems with underdrive pulleys. I have been through the overheating at long idles. 1-1 ratio for crankshaft to water pump is the best. Make sure the belts are tight and not slipping. Roughing up the surface of the grooves helps give the belt better bite. 80 grit sand paper and blow off any film. here is alot more I could cover but I get cut off with long threads. IF you want to talk some more on this, e-mail me here. Rick L.