Just thought I would share this product. I bought this aluminum polish down in Indianapolis, IN @ the 4-wheel Jamboree. It's the BEST polish I've ever used.
It's called Master Formula (brand name) Metal Gloss. Anyways, it's good stuff, I had polished the heck out of my valve covers with Mothers and went over it with this Metal Gloss, couldn't believe how much better they looked with hardly any rubbing.
www.metalgloss.com is on the back of the bottle, not sure if you can order it that way. I paid $20 for two bottles.