Not sure on the guage stage I just got it so all it new... I did check the coolant level today it was a little low and there was nothing in the overflow container... I filled it up and started her up ran her with the cap off the radiator and seen the coolant rise and fall once the car was above ~190 so I would say the thermostat is working and so is the water pump along with the radiator not being clogged; however, it is burnin very very rich as the exhaust was burning my eyes just getting the car up to temp... Major carb issues... I think I need to fix that first and see how that effects the temp... Thoughts???