I noticed that in the low-end, I get a lot of hesitation when I step on it. For example, when I shift from 1st to 2nd (6-speed) the RPM's are above 2k and the engine tends to bog down for a second when I step on the gas. It recovers, but it's not a smooth acceleration by any means. I'm guessing that the engine is starving for air, but I'm not sure. Are the RPM's are too low? I have 13k miles on the jeep and have only run 87 octane. Maybe I should run a injector cleaner through the engine?
Any help on this would be great.