67/68/69 cuda dilemma
For those who may want to know what primer I decided to use for the duration of this project, its Kirker Enduroprime epoxy primer. Two part 1-1 mix with activator. This stuff sticks well to metal. Polyester body filler sticks to it when you scuff it up good. About $100 for a kit that makes 2 gallons of useable primer. A word of caution, use a respirator when spraying this stuff, and clean your paint gun immediately with MEK or MEK substitute when done. This stuff dries slowly, but dries like concrete. The slower epoxy dries the harder it gets.