Bake it.

Put the bare metal in the oven to about 200 degrees. Then shoot. bake some more. Than second coat. etc. Doesn't have to be thick coats as long as part stays warm. Then finsh with 350 deg. for like 30 minutes.

I first put on too thick of a coat on that valve cover below and got that run.

Extremely consistant wrinkle. Way durable. As close to powdercoating as you can get.

You can do this with any paint out of a can. No fisheyes and way tougher surface.