Do you think you are burning it via a bad head gasket? Do you see any white smoke from the exhaust? If you used a shroud, the temp will drop a bit.

The boiling point of a 50//50 water/ethylene glycol mixture is 266 ?F. The boiling point further increases by 3 ?F/psig.

Plastic parts will melt at 266, so the car can never see this.

The thermostat is set to open and maintain a temp. of 195 ?F
The pressure rating of the radiator cap is 16 psig.
3 ? F/psig * 16psig = 48 ? F
so: 266 + 48 = 314 ?F This is the adjusted boiling point of water/antifreeze with 16 lbs. of pressure. The fluid should not boil if itÆs getting circulated, the concentration is correct, the thermostat is good, and if the radiator cap works.