Fuel gauge wiring question

I may have covered it in my stalled out build thread titled
67/68/69 Cuda dilemma

It may be also be in my very very stalled out build thread titled
1967 Plymouth Barracuda notchback

More than likely the whole process is detailed somewhere in the 1967 barracuda notchback , including how to make a solid state IVR to attach to the back of the cluster.

Hope this helps
Matt