RUNNING HOT..after doing good stuff

[MGG]

When I parked my 34 after its first drive it felt hot so I used the wife's meat thermometer in the top of the radiator and got a reading of 200. So, I got new water pumps and had the radiator cleaned and rodded and the engine ran a lot cooler (170 approximately with a laser thermometer). Since then it has never ran as smoothly or as quietly as it did at the 200 temperature.