Less than 12V on VR Input w/pics

67 Barracuda with New Alternator but slightly overcharging 14.5-15.1
I think I know why.
VR input is 11.08 when Batt is 12.56 , key on.
Key off is .32
Added a few nice grounds from Batt to fender and Alt to fender recently per advice of a friend FYI
Shouldn’t Input wire on VR be same as Batt?
What’s the fix?

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