stock thermostat temp for 67 inline six?

[cell]

I put a 195 degree thermostat in my freshly rebuilt 292, and installed a heavy duty radiator (28.?" wide, 4 core). When I run it, the original temp guage goes right up to where the red zone starts (not quite all the way pegged), but doesnt go any higher (even after half an hour of running in the driveway and several hours of driving).

Are the stock guages on these trucks meant to be used with a cooler thermostat, like 165 degree maybe?

I saw a thread about pegging the guage because of a short, but that isn't the case here. The needle starts in the cold and takes a few minutes to point to the red.