Me and my buddies recently put a 350 in a 1987 IROC that had a 305 in it before. Everything went extremely smooth until we realized the wiring issue. Cutting and crimping the wires was the main idea until the chilton book and the wiring diagram we got offline started to conflict. What would be the best course for correctly assigning the wires? Is there adapters out there? Or is a painless wiring adapter the only option?