Harness ID ???

I have a 68 dodge dart that had old pints and single field regulator and slant 6
I put 360, went to MP ignition and wired a new style regulator. All that splicing... Tried to use revenator box and I've got wiring issues.
Classic industries has modified wire harness for the upgrade all ready.
What are the 3 harnesses.
I know the right is wiper. Wat is the middle and left. I need to order the right ones. Please help.

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