When coolant is flowing, shouldn't I be seeing the coolant in the radiator move/flow?

I'm baffled. As was brought up, Perhaps either the advance on the distributor is way off or the carb jets are too small but I'm pretty sure it's got the 72 jets, which should be adequate. I've tried initial timing of 10 degree and 15 degrees and neither seems to make a difference. Any more suggestions?