Welcome to the forum!!!! The YJ and TJ four bangers run graet above 2000 rpms and to run that rpm at 55 isn't tooo bad it is right in the middle of the power band. I have a 5 speed and shift at 3500 in 3rd and 4th rarely hit 5th running 4:10s on some 33 inch tires. So pretty normal they are not race cars but will get you there. Gas mileage is 15-17 on the highway less in town and even less on the trail.
Go over to the TJ page and post up you will get a lot of answers there. Happy wheelin and welcome!!!!
TJ Jeep Wrangler Forum - Jeep Wrangler Forum
89 2.5 TBI, 4" RC lift, 1" Booms, SYE, Adams Driveshafts front and rear, Ford 8.8 with 4:88s, BFG 33X12.50X15, and a ton of other stuff.
AF Jeep Club Tail Number 184