So I finally finish a 9 month resto on a 97 TJ 2.5 - she has 95k miles and I did a complete much needed tune up - new everything except that catalytic converter. So the wife takes it out for a spin and complains about the performance - this is the only 4 cylinder anything we own. It has factory AC which will never get used. If I delete the AC, do under drive pulleys and an electric fan will this provide any real world performance difference? I'm thinking complete engine swap with something that has 8 cylinders. This is going to be a part time DD for her and that's it - never offroad. If some simple mods would give it more pep I'd rather go that route. Thoughts and opinions please and thanks.