Sounds like your heat muff is gone. Remember the little corrugated aluminum tube that runs from the air cleaner wing down onto the exhaust?Miami, OK. Florida would have been brutal. The truck did 70 all the way back no problems. Started right up this morning at 11 degrees with wind chill. Had to keep on the throttle to keep it running though. Lol.
My son wanted to name it the Hulk. He’s super into the Avengers. Wife like Green Machine