Hi everyone,What is available for those of us that drive our cars w/o hardened valve seats? Lead substitute? Racing fuel? I have a rebuilt engine (66) that is in service w/o hardened seats .Any thoughts Imperially, Gary ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm