I realize that this reply is probably after the fact, however a good source for weber jets emulsion tubes and air correction jets is:
Pierce Manifolds http://www.piercemanifolds.com They have a good stock of parts and are very helpful; unlike Langdon's who is very unhelpful and gets defensive when you ask why they do not stock parts, or even have the information as to where to find the parts. Not knowing the ins and outs of Webers, I bought two 32/34 DFT Webers (to go with Fenton intake/exhaust manifolds) from Langdon's and was very disappointed with their "it's your problem now" attitude.
That being said, I am now very pleased with the performance from my Chevy's 235 (bored out .080 and raised compression) Blue Flame Six.
Primary Idle Jet - 50Primary Air Corrector - 160Primary Emulsion Tube - F22Primary Main Jet - .115 Secondary Air Corrector - 170Secondary Emulsion Tube - F25Secondary Main Jet - .105Secondary Idle Jet - 60
