I used 5630 uncoated peel n stick LED strip lighting for my 67 cuda cluster. Super efficient, and lights it all the way up. I also have a spare headlight switch with good rheostat pm me if interested in either.
Thanks for the offer MM2K! It's plenty bright for now, I was mostly just surprised at how dim it looked in the picture. I may just be so used to having no dash lights that it looks really bright to me while driving.