So the copper pieces are just being used for mounting, not for conducting electricity? I think 10 gauge is correct for your wire between the ammeter and fuse block.
Others will chime in with their knowledge and experience.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
