Duplicolor Ceramic Engine Enamel. 550 degree. Still needs a few more days ambient cure and ill color sand and polish it out per Duplicolors advice over their techline. Very little orange peel. Cleaned it, Sanded it from 80 to 400, Built it up with primer, Several light coats of color then sprayed wet with color and clear. Layed down like glass. 10 minutes between coats.
I plan to do my intake manifold, thermostat housing, alternator, and front bracket assembly the same way. At 1/10th the cost of powdercoating, i never had a problem with finish or durability when I did my nightrunner the same way. Still looks flawless.