I am only replying to what I know. Quoting Ken & Tracie <ktjosephson@xxxxxxxxxxxxx>: > 2.) Did factory dual exhaust 1968 Imperials use the high performance style > exhaust manifolds like the ones used on Magnum/Super Commando B body cars? No, standard manifolds. > 4.) I have noticed some dual snorkel air cleaner lids have a flat surface > across the front, others have a sort of notch. Can somebody tell me which is The post 69 air cleaner has rectangular cross section snorkels, the 68 and prior has oval, or curved cross section snorkels. Of course, "correct" is relative. I use whatever I get! These air cleaners are expensive! Its easier and cheaper to convert a single to a dual. D^2 ----------------- 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