I hazed over mine with a rosebud on a torch and got rid of a lot of crap that way...
a wire brush on a grinder and some detail work will get the rest.
I only use the Duplicolor 1634 Low Gloss Black on parts like that.
It covers great and is hard enough not to leave light finger print scratches and holds up very well.
It's dull enough it doesn't show every minor flaw in the metal and the best part is it already has fish eye preventer mixed in so I never get fisheye's...
Here's a pic of the paint on the K member, valve covers and pulleys in the Dart.
Also the K member and pulleys on the Satellite...
Kinda like Red Hott "I put that chit on everything"...