I did test the clutch. It works fine. Even called Hayden since it was a prototype of the new HD shorty clutch. I thought maybe something was off with it. But it works as designed.
And wouldn't the fact that the temp cycles between 190-220 at a constant cruise mean the thermostat is acting strange, regardless of the minor idle cooling issue?
How many different diameter w/p and crank pulleys did Dodge make? The pulleys on it now are stock. Why wouldn't the stock fans spin the fan fast enough? I'm not trying to be a smartass, just asking cause I don't know. I'll look for a smaller water pump pulley or larger crank pulley.