I'm thinking of putting an overdrive unit behind the trans there is a old company that I dont think is around anymore called hone-o-drive that made a devorce mounted over drive that where used on motion super cars and other cars in the late sixty's and later on mobel homes. The thing I like is that they dont boilt onto your trans.
Bob
About the drive and it's creator Fread Hone
http://www.stangerssite.com/honeodrive.html

Google search honeodrive
http://www.google.com/search?source...f&aqi=&aql=&oq=&gs_rfai=