That is normal. Once the oil is warmed up the oil pressure should drop some at idle. As long as the pressure builds along with the RPMs you are fine. One of the local engine builders told me many years ago that as long as you have about 10 psi per 1000 RPM all is good. This is coming from a Ford guy that mainly builds race engines.
1990 Jeep YJ 4.2
Howell EFI, BDS 3.5" lift, M.O.R.E 5/8" Boomerang shackles, 1" Daystar BL, 1" JKS MML, TFI, Crager soft 8s w 35" Dunlop Mud Rovers, Ford 8.8, 4.88s, Dana 30 E-Locker, Terra Flex SYE, Tom Woods CV shaft, Warn M8000.