I need to do A Valve Job to my 300E. I'm going to take the Head off Myself. Does any one know of somewhere I can send it to get done? I don't want to take it to any old shop I want it done right.Can I get any performance mods done at this time such as polishing the head? Is there anything else I should change at the same time besides the gaskets? I live in the mero detroit area if that helps.