Yes actualy it is okay and pretty good.
The engine doesn't start making good power until it hits at least 2500 rpm. These little engines can run at 3500 rpm all day long, but I wouldn't sustain much more than that.
Chart AMC 150/2.5 Compression Horsepower Torque
One-barrel carburetor 9.2:1 105 hp (78 kW) @5000 132 lb·ft (179 N·m) @2800
Throttle body injection (TBI) 9.2:1 117 hp (87 kW) @5000 135 lb·ft (183 N·m) @3500
Multi-point fuel injection (MPFI) 9.1:1 120 hp (89 kW) @5250 139 lb·ft (188 N·m) @3250
Torque is the one you want
I have a 1991 2.5 TBI and its actual a XJ engine designed for an automatic tranny so the rev. is super high to make power. Third gear is the god gear. I can go faster in third gear then in any other gear, i hit about 85mph at 3500 RPM flat surface. Note: i do have a 4.0L TBI and cheap old cold air 31inch tires and stock everything else.
Link with more help for the 2.5 guys to gain more power. 2.5 Jeep AMC engine