I'm not real familiar with the TJ but I know a common problem is the "Anti drain back valve" and it's a pain in the ass to replace, it's in the fuel tank.
After it's been sitting for awhile (like overnight) before starting it, depress the pin inside the Schrader valve on the fuel rail. If it squirts out, there's plenty of fuel and fuel pressure at the fuel rail. If there's no fuel pressure at the rail (If there's no fuel that comes out or it just sorta leaks out) it's likely the anti drain back valve is leaking. The Schrader valve is like an oversize tire valve, it's underneath a black screw-off cap on the front part of the fuel rail
You could also try turning the key to on without starting it and let the fuel pump prime, turn the key to off and then back to on again letting the fuel pump prime again and then see how quickly it starts, if it starts right away it means there was not enough fuel pressure there on first prime, which would again point to the ant drain back valve
If you suspect a vacuum leak, go buy yourself a can of start aid, (You should have some anyways incase you ever blow a bead on the trail) while the jeep is running spray all your vacuum lines, if you have a leak your idle should go up on its own when you spray the area that leaking.
Super Swampers are really stiff, friend of mine runs his 33"x15"Boggers at 8psi and they don't even squat. I have a set of 33" TSLs on 15" rims and I run them at 9-12 psi depending on what I'm doing....never blown a bead. If I were you I would start at around 14-15psi and see how that goes....I'm fairly certain you'll want even less though.
I'm not real familiar with the TJ but I know a common problem is the "Anti drain back valve" and it's a pain in the ass to replace, it's in the fuel tank.
After it's been sitting for awhile (like overnight) before starting it, depress the pin inside the Schrader valve on the fuel rail. If it squirts out, there's plenty of fuel and fuel pressure at the fuel rail. If there's no fuel pressure at the rail (If there's no fuel that comes out or it just sorta leaks out) it's likely the anti drain back valve is leaking. The Schrader valve is like an oversize tire valve, it's underneath a black screw-off cap on the front part of the fuel rail
You could also try turning the key to on without starting it and let the fuel pump prime, turn the key to off and then back to on again letting the fuel pump prime again and then see how quickly it starts, if it starts right away it means there was not enough fuel pressure there on first prime, which would again point to the ant drain back valve
law states you cannot have any rubber poking out past body panels, you will be subject to getting a VI if you do.
If you suspect a vacuum leak, go buy yourself a can of start aid, (You should have some anyways incase you ever blow a bead on the trail) while the jeep is running spray all your vacuum lines, if you have a leak your idle should go up on its own when you spray the area that leaking.
Ya I'd join you too, it's pretty easy getting to the top but the road after the upper gate is all blast rock....terrible on the tires.
Super Swampers are really stiff, friend of mine runs his 33"x15"Boggers at 8psi and they don't even squat. I have a set of 33" TSLs on 15" rims and I run them at 9-12 psi depending on what I'm doing....never blown a bead. If I were you I would start at around 14-15psi and see how that goes....I'm fairly certain you'll want even less though.