There was a list in the Engine Conversions section for carbs with around an 11 mm venturi ,but the link won't open any more. I had it printed out so I turned it into a PDF.The carb list isn't in order,but the first PDF is for Walbro carbs and the second PDF is for some Zama carbs.I know this doesn't help the poster of this thread,but may be useful to someone else.