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Message: <blockquote data-quote="PinkieT" data-source="post: 1401539" data-attributes="member: 20959"><p>Scored a used Accufab plenum and throttle body.  The plenum has some pitting, worse in some areas than others.  I tried some light metal polish but it laughed it off.  I did a Google search and came up with a lot of ideas, some contradicting others.  The most common idea seems to be start with 200 grit sandpaper used wet, then go to 400, etc.  This is a fair weather only car, and under the hood is really nice right now.  Any suggestions?</p></blockquote><p></p>