Operating temps in the 180 - 200 range seem to be the norm. My 427 sideoiler pegs at the 175 - 190 range, depending on various conditions.
If you have an adjustable unit that opens at 160, I would recommend that you leave it at 160, as well as installing a thermostat that opens at 160. With the Texas summer coming up, it helps if the cooling system kicks in early, before you find yourself in a situation that makes your temp spike.
Bud
