I found my AVS on Ebay and won it.

A 4424s for My Formula S. What is the K8. Is that a date code? My car has such an early production date, I just need to be happy with the correct carb number. I’m sure I paid big bucks for it, but it was the last critical part I needed.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=4583220096