In this type of weather I doubt it will stay 190 all of the time. It's going to climb especially in stop and go traffic. I have been down this road before. My cammed up, bored over, hot little 360 wasn't staying cool enough in the summer times. All I had was a 3565 cfm puller electric fan and I was seeing temps in the 210 range. If you get down to the math a 360 will require over 4000 cfm to keep it cool.... I can't remember where I read that but it was in a car mag. My rememdy was chuck the stock two core radiator I had, bought a Griffin aluminum radiator with the large cores. This automatically induced much more coolant and water into the system. Next came a shroud with a mechanical fan no clutch involved. The shroud directs the air directly onto the block and heads of the engine.... that's its purpose. This helps out a bunch because the air isn't going in all directions but directly where it is needed the most. I installed the electric fan on the front of the rad and converted it into a pusher just in case I need it. I have not needed to hit the switch since I installed the rad, and shroud. I still hit 190 in stop and go traffic but I don't worry about it because a bored, hot running engine is going to run hotter than a normal daily driver motor anyways. Running down the high way and running on the warm side indicates that there isn't enough radiator capacity. Not enough water and coolant... that's what I was told by a old timer radiator shop owner anyways. Griffin has some nice radiators if you can swing it. I bought the shroud and it bolted directly to the Griffin without a bit of trouble. The temps dropped dramatically in the engine bay as well as in the cabin of the car.... it was amazing what a radiator can do and the proper capacity. Some might not agree on any of this but it worked for me!! I was having a serious vapor lock conditions, hard to start after the motor has been run. Good luck
