I am selling three 40mm DOCE carbs, there is nothing wrong with these ran perfectly on my car. and the only reason for the sale is that I am planning going to a efi. And wont need these any more. I do have them set up for my car as far as the jets are concerned but it should give you a starting point on where to begin. These sound and perform great plus the aspect of eye candy under the hood. They list for about eight hundred each. These do have brass floats in them which makes them the sought after ones. But these are used items so I would let the go for five hundred dollar for all..I am located in the San Diego area if you want to come by and view the items..