I became interested in the 30DIC carburettors some time ago when I bought a highly tuned Fiat 126 engine (795cc Alquati) that had originally been fitted with one of these. I went on to use one on another tuned 126 engine and was very pleased with the way it performed with the progressive throttle arrangement. I have rebuilt quite a few over the years sourcing, parts all over including Europe and even Australia and I can say that this particular carb is amongst the best I have handled. It has been stripped, chemically cleaned then extensive ultrasonic cleaning before assembly replacing any parts where necessary. I also have Weber badged versions and the Spanish (Seat 850) Bressel versions if preferred.