That sounds pretty normal to me...
You'll hear the fan pick up speed when the needle passes 200-205 and it will pull the temperature right down. If you have ever towed in the really hot weather (not just SRT10's) you'll see 220's or a little higher, and I believe the system will handle something like 250F. (But that would be hot).
190F for oil temp is plenty cool... very high 200's even low 300's would be the limit for oil temp. You won't see that unless you are really really ragging on it. There is actually an oil-water exchanger to cool the oil.