[fiveohpatrol]

I'd put a 195 thermo in it and maybe switch back to the 180 if it gets too hot in the summer (should be ok though)

another thing to try is to get an electric fan with a manual toggle switch in the car that you can turn on and off as you like
this way you can leave the fan off and the motor will get warmer and should make your heat warmer too

hope this helps, good luck