Nothing wrong with a 350 running at 200. That's well below where your oil starts breaking down. Many computer controlled motors run that or hotter.
My newest 350 runs consistently at 200 and up to 212 or so when in stop and go traffic. I checked the owners manual and visited a web site that deals with computer controlled motors. Its fine.
Somewhere above 220 is where the oil gets in trouble and provided the motor is otherwise healthy that's where you start to worry.
We really need more info about your motor and application before responding to this one. Unless it has always run at 180 and suddenly now runs 200 I wouldn't worry about it.
