Jeffy I thought I answered that 4th gear screaming to me is 3000 rpm and climbing.
3000 isn't really screaming. It's actually right about where you want to be. Your powerband will usually start around 2700 RPM and peak around 4300 RPM. You can wind it up more but you won't get any more power. Although this does help keep you in the powerband as you climb a hill and your RPM's start to drop quickly.
5th gear is a cruising gear. It's for when you're not passing anyone and you want to conserve gas.
Also, if you haven't swapped out the speedometer gear your speed and mileage are going to be around 7-10% off. So when you think you're doing 60MPH, you're actually probably pushing 67-70MPH.
First thing I would recommend is to calibrate your speedometer (it's in the FAQ). This will not only help you gauge your problems but also help the computer as it uses the speed to set the air/fuel. I would also consider a gear swap. 4.56's would be good for 32's but you might as well go with 4.88's as you will probably swap to 33's eventually. This will make a huge difference in power. Other mods are good but not earth shaking.
Overall, your findings are normal for a stock Jeep with 32's. You're going to have to learn to rev it up more if you're going to stick with those stock gears.
