electrical issues with the 67 fish

red67cuda said

Thanks I will do this. Is the voltage limeter inside the fuel gauge? Otherwise I don't see it. I will ground the cluster and get back to you later today. I did think about this but it seemed to easy. I assumed the cluster made its own ground when in place. Thanks again

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The mounting screws make chassis ground all over these cars.
Yes the mechanical limiter is inside your fuel gauge. Regardless where it is located it needs a ground reference to operate properly. I've seen the pluged in can type blister the copper right off the circuit boards, more than once.
I still dont have an answer for the no start but I feel like neutral safety switch is somehow involved. You do have both wires connected to the amp gauge, right ?
Good luck