Just go how you feel like going. Being stock you will not hurt it. As far as the boost thing, the numbers that were posted earlier are numbers you would see for a Ford. You Dodge will run 25-30 psi all day long. I will run 15-20 on flat ground out on the interstates. I might see 6-8 coasting.
2005 Ram 5.9 AT SB QC (Retired)
2010 Ram 6.7 G56 QC CC Aluminum flat/Leveled (Sold)
2008 Nitro Z9 towed by a 2015 Sanibel 3601 towed by a 2013 Ram 3500 SRW CCSB Cummins
2006 EZ GO 6" lift