Have you tried calling Vortech? I'm not even sure that the Contour/Cougar kit is even available any more because it was so unreliable. Granted, there are ways to fix it right, but it becomes more than a cheap bolt on at that point.
Use the search feature here in the FI section and you will find a tremendous amount of information. Then call Vortech if you still want one. Personally I'd choose the ADC Turbo kit (formerly from StreetFlight) if I was going to buy a package deal.
