My first thought to this questions is your choose in Gases? How clean is the surface your welding? I prefer .025 hard core wire with a 75% Argon and 25% CO2 or a Tri mix Gas. What type of welder is it? Lincoln, Miller e.g.
welddoctor
I found several Vanity Plate sites when I was looking for a plate for my '68 Mustang GT I chose 2L8IWON, For My '69 Dart GT I'm looking at one I saw in a Mopar Mag A6PK2GO or 6PAK2GO. There are some Good ones out there.
welddoctor