When I first noticed the hot manifold I then looked up different videos on what it could be I cane across some info on it being lean. I then adjusted the carb for a richer mixture and the glow has went away. I dont open the throttle fully on the hills because I'm afraid it will flood out even it hasn't since I've had it. It seems it responses better to 3/4 throttle better. Full throttle seemes it kinda holds back in a way.