headlite question

I appreciate all the input, I really do. This gives me plenty to check out tdoay and maybe tomorrow. Today has already got a list of other stuff we have to do! The list was long when I got up at 6 am!
This car is a 62 Lance I got couple years back. I had several other cars that got my attention. The slant turns over, I changed it over to Mopar ECU deal, I never got around to getting it running... did all the rust/body work back then, but never really got back to it much till recently.
I know it has full 12 v. in and out of firewall. I have pulled the instrument cluster best you can, but on these early cars, the metal part of the dash is really in the way to get under it all to see anything like headlight switch hardly at all.. I did by pass the amp gauge. I know the wiring on this sucker is really OLD. Wife has claimed this TOAD, so I have to keep at it!
The headlight wiring on this beast is somewhat different than those 63 up. It has a pigtail that plugs into the main headlite hardness inside the headlight buckets, and there it that grounds inside that bucket. I had cleaned that ground good. I was wondering other day working on it , IF the ground is not good there at the headlight bucket, maybe I need to splice INTO the grond wire there and run another ground to radiator suppport?
Hopefully this afternoon I can take everyone's info and get some v. readings and clean all other grounds and have results. The bulbs are new
This old Toad was used on a Mo.dirt track years back as the pace car!!!
Hopefully I can check it out some this afternoon!!