I finally got my SVT running right last night. It has the zetec final drive. I had it installed because I was S/C'd at the time, then went turbo. Now being all motor the car really seems to stop pulling around 6Krpm with the zetec final drive, I do have a full 3" exhaust which isn't helping either, and slightly lower compression than stock. All that adds up to the most expensive and slowest contour in human history. I do wish I had the stock final drive to say the least. I'm just happy to have it running good again.