What paint do you guys use on exhaust manifolds?

I have sandblasted and POR'd "nitemoves" 318 manifolds and they turned out great!! They havent been fired up yet though. I also used POR "black velvet" on a customers motorcycle 4-1 header and it turned out nice as well. Both were brush on and went on perfect! Im going to use POR on both mine and my dads manifolds