High temp gauge

Lately my 67 Satellite 383 has been registering hot on the stock meter. I do not believe it is actually overheating , i replaced the stock rad with a 3 core about a year ago, flushed the system and reinstalled all season antifreeze. The car has been running great and still is but showing hot, just to be sure i replaced my thermostat with a stock 180f to assure this was not sticking. When reading hot I mean the neadle is in the top zone of the scale, it is still possible to touch the rad , upper rad hose and heater hose without burning skin, it is hot but i would expect if this gauge was correct this would not be possible. Also after turning off the engine it does not blow steam. I am in the process of getting another temperature sending unit to see if this is the problem but was wondering if anyone knows where i could purchase a c-3826 meter or if there is another way to test the heat gauge without removing it from the dash. Any thoughts appreciated. pete
Author: sendust