At the risk of being negative, I would stay away form that guy's stuff. He uses the cheapest Taiwanese cleaner pie plates and valve covers he can find and then installs emblems that have no relationship to the brand or make. In my opinion, the finished product screams "cheesey". Again just my opinion, but I never liked the covers with the "offset" breather holes either. Decent chrome covers with centered holes (like the ones that came from the factory) are available from Summit:
http://store.summitracing.com/partde...5&autoview=sku