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You could contact Dave or Chris at Modern Muscle or Hotwire, they can sell you a wiring harness that is plug and play with stock .






Yep call Modern Muscle. I bought a 5.7 harness/engine managment system for my 55 Dodge truck project from them. Great support and service. The harness is actually built by Hot Wire. You could also give Chris at Hot Wire a call, he will answer all your questions.