Mike,
Not trying to start an argument but I had a T-5, 5 speed racing transmission in my Cobra and I had a neutral safety switch. If it wasn't in Neutral you couldn't start the car and I had a 351 stroker and no computer of any kind. I didn't have back up lights as they weren't required when I built it.
Maybe I am misunderstanding what you are saying about a Neutral Safety Switch. If so, please accept my apologies.
Ron