My project: '95 H.O. going into a '90 MJ using a '91 engine bay harness and ECU.

My problem: I want to leave the dash harness alone (to keep from having to switch gauge clusters and so on), so I'll need to hack up the two harnesses at the bulkhead connector to get the two to talk to eachother. OR, I was thinking I could maybe retain all the accessories (lights, etc.) of the old harness and use the H.O. to run the engine. I know hot-roders do this all the time retrofitting late model EFI powertrains into old platforms. I can't think of any problems except the fuel pump stuff, the AC clutch, and making sure that power's getting to both...

anyone see any other problems???

Go to Yahoo groups and join the strokers group, they can tell you exactly how to do it, wire for wire pin for pin, they discuss it all the time