I recently came across a web site for a automotive machine shop that advertises they will do head reconditioning for smart cars (basically a thorough valve job)for $185 plus needed parts. I started to post the information with a link to them, then wondered if that would be considered promoting a commercial entity., even if I had no connection them and nothing personaly to gain. I read the information about posting rules and am still not sure if it would be against the rules. I'm sure this would not include warped heads, but i'm sure there a lot of still-running smarts out there that are needing a valve job. Colmments moderator???