My Slow NA
#166
#169
Are you trying to polish it to a shine? Or just clean it up? Polishing it will require that you sand/grind the texture out of the casting- then when you've worked your way up to a fine sandpaper move on to a machine polish or a hand polish like Mothers aluminum polish.
#170
i want to do that, but i dont have the machinery patience required so im just going to make it shinny. plus i kinda like the texture