[Eljaro]

looks like Weber is IN ! I too am surfing to collect as much info about a setup for my BB 427 C/O.
I have found a kit for $3.295 without fuel lines at several Weber vendors and a similar kit with fuel lines, regulator and gauge for $4.795 at Inglese. I have asked them what else they offer for the extra $1.500
Waiting for a reply.
It seems to be important to get the linkage precisely adjusted. If what you get is crap, you can make that yourself or get trick linkage parts at Total Performance.
Generally speaking I think that there is now sufficient info on the Cobra Forum as to put together a good running setup.
The fine tuning you will have to do yourself, no matter from whom you buy.
Dont forget to ask the vendor to tell you what exctly is fitted to the carbs such as jets, tubes, chokes, etc.