Well - removed all the wires from the old 98 Vortec C1, C2, C3, and C4 connectors and got them pinned into the new Vortec C1 and C2 connectors - It wasn't that bad at all. I then removed the injector wiring, coil wiring, CKP, CMP, and MAF connector ends from an old 6.0L harness. Didn't get them connected into the old harness yet, maybe tomorrow night. Thanks Lextech!