My water temp doesn't get above 165 deg daily driving (Edge tells me this, stock guage says about 170). I got it up to 190 one time towing my buddy's truck. Is this normal? The water pump was replaced last summer right before I bought the truck. The thing that sucks is the Edge J/A programmer doesn't allow full timing and fuel until it warms up to 175 degrees so I'm never getting the full effect unless I'm towing, which is pointless...... do I need a different thermostat?