greengeeker
New member
I'm building up my 258 and have found a donor yj for the head and or MPI system. I have been doing a lot of research and haven't been able to get any straight answers. I've found out that the Mopar MPI conversion kit for the 258 is based off of a 94-95 4.0 system. However, does anyone know what is different from the factory system? ECU? Injectors? etc? Can I just take the entire system from the donor 94 yj and drop it in my cj? Any info will help. Thanks.
