I am sorry if I have confused anyone. There are two types of 2bbl Q-Jets made. The first one is the same size as a 4bbl Q-Jet but the secondaries are just blank no parts inside or fuel/air passages. The later model which I put on the car Is called a Dueljet 210. That's the model stamped on the carb. For those not fimiliar the carb has a smaller bolt patern than a 4 bbl but bigger than any 2bbl that I know of like a Holley 350/500. The air flow is exactly the same as an Autolite 2100 with a 1.08 Venturi but is more tunable with metering rods and "Adjustable part throttle" for even finer tuning. I like Autolite 2100/4100 carbs and have run them before with success. I just wanted to try something different and was very pleasantly surprised with the results so far. If a good one piece adapter could be made, this could be made to work better IMHO than a weber 32/ 36 conversion because it's easier to work on and flows more air. Jay
