OK, so I use the 85 harness, with the 87 ECM, 87 MAT, 85 MAF, 85 Cal Pak, Custom chip. I have to add a pins to the harness for the MAT and fan relay.
If at the same time I change my coil and ign mod it an type II it is my understanding that you (caspers) make an adapter for the ign mod to...