Gentlemen: I'm searching for a solution to a vexing temperature problem in my very stock 1974 Duster. My car has the 225 engine, stock renewed head, EGR system disconnected, all in very good condition. When I start out, the coolant temperature takes about five minutes to climb up to about 210 degrees, then regulates back down to 195. If I run the car for a long drive, the temp goes down and regulates to 170 - 180 and slowly goes back and forth in that range. Outside air temp is 45 degrees....
Guys, do I have a temperature problem?
