Need Help with tuning Webers

[427Aggie]

Ok lets ask some basic questions

1. Was the a new set of weber..IE manufacturered in 2005?
2. The only way I found you can accurately tune webers is to put the car on a dyno for a day and just keep tweaking....when you dyno tune it you can plainly see what idles, mains and air correctors you need.

basic 427 setup should be 37MM Chokes, 120 Idle Holders, 60 Idles, 160-65 Mains and 200-210 Air correctors with a .50 - .55 bypass in the float bowl.

3. Did you ever set the floats? you can't assume that they were correct.

4. What pressure are you trying to run the webers at? I ran mine at less than 3lbs usually around 2-3...I set mine when the car was warm and then just forgot about it...if I had fuel I was good.

5. ARE YOU RUNNING SOME TYPE OF FILTER ON THE CARB!?!
bad bad bad...I could absolutely NEVER get mine tuned if I had any type of filter on the carb...theres a really good air flow analysis over on the GT40s.com website that shows how much these things like air and how anykind of disruption changes the complete characteristics.

I spent 3 years learning how to freakin tune these things and still have serveral thousand dollars in jets and parts....THE DYNO really taught me how to fine tune a set. Once I got mine tuned in I NEVER>....NEVER had to either sync them or tune them again..they just ran and ran and ran.

And yes they will ALWAYS smell like you are running rich even if they are tuned correctly and you really can't read the plugs.

matt