2-3 miles is hardly enough to let it warm up, let alone get "hotter" - a thermostat sets the minimum temp the motor can run, a 180 is plenty unless 'betsy' is a later model small block
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
