A good set of headers. Fresh injectors, cold air intake and cams and it makes a world of difference. Mine is bored 40 over with all I just listed and it runs great. I cruise at 70 mph with 37's. And have plenty of more power. My rig is heavy as hell too. I could have put any engine I wanted to at the time, but like I've said before. I want it original and don't want to deal with ref or anything. Just smog it and wheel it and drive to where I want without the hassel. I really want the LCE pro heads tho. If uncle Sam is good this year I will be doing the heads with LCE stand alone