Oh, you meant... polish the INSIDE of the intake manifold. That's a boatload less surface area than polishing the outside, too. I was talking about the outside of cast aluminum parts, and you have to be criminally insane to take the time it takes to polish a Intake Manifold. They're 5x tougher than polishing the outside of a cylinder head.

BTW: The power steering pump came out okay. Certainly not as good as my EGR valve, but I didn't go nuts on it because I may have to replace it, If it were rebuildable, then I'd spend a few more hours on it, but I won't know that until tomorrow.