Pitting chrome, how to repaint

U may want to try filler primer spray paint. That's what I used on my rims. Scuff it up, put a few coats of filler primer on, let it dry, sand it till u start seeing the chrome again, put a few more coats, sand again, and keep at it till the pits are filled in and sanded out. Then do a few more coats of filler primer to smooth the sanding marks and hit it with the black u want.