I got mine done by Carb Junkys http://www.carbjunkys.com/
They refinished each part to their original finish (example: goldish body, zinc colored butterfly's, etc) and they provided an 18 day turnaround and a good price.
It even had new shaft bushings installed.
It was important to me to have the correct finish on each part instead of an all gold carb + parts refinish I have seen on so many 'restored' carbs.
The only finish not preserved was the green Teflon coated shaft ends (mine were rough anyways). I used an approximately matched color enamel for those 2 small sections visible on the outside.