Engine test stand wiring??

@67Dart273 You gave me a lot to consider. That is well thought out and well written. Loads of information and I will have to read and reread to fully comprehend it all. I understood it and then got lost, found my understanding and will study it again. I appreciate the help and When I put this together in the next few weeks I will post again what I have so that I have fully implemented what you advised. Thank you.