I have no idea how much your cab "breaths" but I have 160s in both my 38 and 53 and the heaters in both will run you out. Stick your hand in 160 degree water and see how long you hold it there. My 38 also breaths well. Assuming your blower fan is working normally, if you want it warmer without overheating in the summer do what we used to do when I was a youngster and my dad before me, put a piece of cardboard in front of the radiator to block part of it off. Remove it for summer driving.
Last edited by Tiny; 10/28/2020 8:50 PM.
