I've got a transmission to rebuild for a guy, circa 1972 out of a torino. When taking it appart I noticed that both clutch packs only have three clutches in them. The engine is a pretty healthy 460, I just feel that a minimum of 4 clutches would be needed, if not more. Has anyone upgraded to more friction/steels on a older C6? I normally get my stuff from http://www.bulkpart.com/, anything else I need to do to hold up to about 500 hp?