Evans Coolant Temps

Well that means that the pump is being overdriven by 7.5% - not bad.
I dont believe you going to get much more that that with factory stuff.
Are you running a high flow thermostat ? Like a Stewart or Milodon?
Sorry if I missed that earlier.
The hi flow pump is pretty much worthless with out a hi flow t-stat.
Last time out I had no thermostat in per Evans. The cooling system was able to maintain around 185 and cool down from 220 pretty quickly at 40-50mph in the couple mile stretches I could do around my house. But it shoots up fast when stopped. That’s why Evans says the cooling systems is up to the task but I need more fan capacity.