Just do some searching, it is pretty straight forward. Like haao13 said convert to obd1 but to be able to use your stock harness etc you'll need the following:
OBD2 alternator
Your obd2 injectors
OBD2 dizzy
OBD1 ECU for that engine with conversion harness
I think that's it, I did an obd1 B16 swap in my bro's EK and I'm pretty sure that's all we swapped out on the engine then used the OBD1 PR3 ECU with Rywire harness.