Looking through Stillen's sport car 2006 catalog, on page 10 shows a picture of a Vortech installed on a 350, looks to me like it's cog drive!
Has anyone heard of this, Does Vortech make a cog replacement kit? ya right!! I called Stillen, they said they would call Vortech to find out more.
Kevin

 

I belive the DSport project car recently got a cog driven Vortech, but I did not think it was generally available to the public yet.