I have to change the coolant thermostat and I am running an EZ FAST EFI. The current thermostat was 195 degrees. I would consider lowering the temp to 180 if this would not adversely affect performance of the EFI. I cannot find a reference in the instructions. My radiator cooling fans are set to come on at 195. I want to go to Failsafe thermostat and my choices are 180 or 195.