As a newish member it seems there is a vast amount of correspondence regarding carburation problems and difficulty sourcing spares , replacements or alternatives. My car has worn spindle housing and is awkward to set, plus I like 'messing about with cars' . The su carb is simple ,easy to set once needles sorted and parts are readily available. A kit with manifold adaptor, carb and related cables and brackets could be a answer to what appears to be problematic for numerous owners. However I understand the preference to keep the cars original. Just a thought.