440 overheating at idle

No question pulling the fan back out of the shroud will help. Also, get a real fan, because that "AIN'T" one, I don't care what your "SHOP" told you. That's a toy at best. If you want to retain a solid fan, get a Mopar factory fan, OR a Mopar factory clutch fan if you have the room. It appears that you may.
More confusion (back to, I am mechanically minded, not a mechanic). I have a clutch fan that I took off at the recommendation of 2 different mechanics. Having said that, will I change the fan at some point?, probably. Right now I know it moves a lot of air and I will keep it in place until I get the temp issue under control. At that point I will remove the fan and replace with a solid unit, right now I don’t believe the fan is the issue. I am leaning towards fan spacing, timing