I think the average MTX Zetec is around 16.8~17.0, and the avereage ATX Duratec is 16.2-16.8. Luck of the draw + driver's race, I guess. Don't take those as gospel though.
search nazis: sometimes it's hard to find the exact information you're looking for; please just be curteous and either answer the question or ignore the thread, rather than wasting bandwith by trying to belittle someone.
-Chris