you need
obd1 dizzy (unless you want to buy a second conversion harness)
p28 (with jumper)
For ease of everything I would convert the engine to OBD1, then get the jumper harness for the ecu
like I said, I have an entire OBD0 to OBD1 engine harness, all you would need is the dizzy and ecu+jumper
its alot harder to convert an OBD2 engine to OBD0
obd1 dizzy (unless you want to buy a second conversion harness)
p28 (with jumper)
For ease of everything I would convert the engine to OBD1, then get the jumper harness for the ecu
like I said, I have an entire OBD0 to OBD1 engine harness, all you would need is the dizzy and ecu+jumper
its alot harder to convert an OBD2 engine to OBD0