Air Pressure Question

[MitchG]

Guys could any of you tell me what air pressure is "correct" for the deuce? I have searched the forum and found quite a few different opinions on air pressure settings. Anyone know what the "book" pressure is supposed to be or does it really matter as long as you don't go over around 120 psi? I'm replacing my air governor and don't want to put too much pressure on the system.

 

[Floridianson]

TM 92320-209-10-1 page 4-3 would have you believe 105 is normal. Trouble shooting says is unloader unloading before 120 or after adjust governor or replace compressor.
Some like the 120. I like 110.