shadow carbs
First ,go back to Len's reply re-carb numbers, look at the top of the flange, where the carb mounts to it's adaptor,with me so far? the magic numbers will be there. Having gone through all that, the only way to be sure , is to measure the size of the bore on the engine side and report according . We all were "new boys" once. Asking apparently "idiot" questions is the way forward in my book. Be lucky, Roy.