Epoxy primer

Call Southern Polyurethane. They'll give you some accurate answers.

Can't agree more. The owner, Barry will walk you through all your questions, even help setup your gun. I stripped the Dart, SPI epoxied, body filler over epoxy, used SPI 2k high build, reduced SPI epoxy for a sealer, then paint and their clear. Pics in my build thread. First car I ever painted.