Help

[Chsrles]

I have a 1989 Jeep Comanche that I bought about a year ago and it has not ran right since. It’s an 89 with a 96 motor adapted to the renix system. Tons of new parts from previous owner and yes he swapped everything over properly. My dad Uncle brother and I have gone through everything. It has been to 2 shops and nobody can figure it out. The truck runs super rich and runs rough. Would love to hear any ideas or thoughts? Would also like insight on converting to carbureted and how to go about that. Carbureted is a last resort of course but after a year, I’m ready to drive it.

[eaglescout526]

Which engine?