Find out what these companies are doing for the Mustang and their returnles systems. If they did it w/the Mustang they can do it w/the Contours and their returnless system.
Also, check out a product called the "Boost a pump" that I believe is made or sold by Kenne Bell. Something like this might be the answer, or it may not, it's worth invesigating.
Kenne Bell doesn't have there website up and filled w/cool stuff yet but they do have a E-mail address that they might be able to giv you some info.
kennebell@kennebell.net [email]null[/email]
