[Wick]

You can use a temperature gun to check it. I don't care for the temp. Guage, I'm old school...if the engine smells funny, can't touch the head then it's hot. If you hear the radiator gurgling, it's hot.
If the exhaust manifold is white or you hear the engine ticking when its off, it's hot.
After a ride you should be able to touch the dip stick, carburetor and top of hood.
I do know the engine will run 10 degrees cooler with the engine pans installed.