HELP Obd1 mpfi distributor wiring

I'm doing a obd1 b18b swap in my 88. I'm using the 88 harness and jumper with a p75. After starting the distributor wiring I noticed the obvious 2 extra blue wires (blue/yellow and blue/green). I've read to run then to the ecu to certain pins but I also read that while doing that I should switch 2 other pins on the ecu and use their empty pin spots? Getting kinda confused. Any help would be appreciated.
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