Don't know about your Jeep,but on my Dodge pickup,while in neutral or park with no load on the engine,it cuts out around 3000.When in gear and driving,it tachs out at 5600.
I have an Edelbrock Performer intake with a 600cfm Performer carb on my 360.Big improvement over stock,but I've heard the Holley Truck Avenger carb does better at steep angles.
It's official name is Caroline,'cause she came from S.Carolina.Most of the time it's just "the Jeep",or "the good Jeep" if it's parked near my old basket case '74.