We took a thermometer reading in the cap at 190 and the gauge was reading about 200. .... As I understand it a higher pressure cap would actually raise the operating temperature.
so is it running 210-215 by the gauge or 210 with the -10 anomoly [gauge showing 220-225]?
a higher pressure cap allows the engine to run at the higher temps that it was designed to
without boiling over - 195* thermostats are common for 350s, and 210 running temp with the high pressure cap isn't uncommon .... a good test is to check with an infrared thermometer, see what temp is above and below stat housing and compare with the temp at the bottom hose, should have a
minimum 10* drop thru the rad, 20* would be good and prove the rad/fan/pump aren't the problem [if there actually is one]
Bill
