For the ease of a single carburetor setup with the performance gains of the one and only Weber Carburetor, the single IDF is the way to go! The Weber name is synonymous with performance and reliability. IDF carbs offer a wide range of tuning possibilities with changeable air and fuel jets, changeable venturies, and an adjustable accelerator pump. The 40 IDF is a torquey choice for 1600-1800cc engines.
Kits include: aluminum center section manifold, aircraft style heim joint linkage, chrome topped gauze air cleaner, and all gaskets and hardware. Does not include dual port end castings. 40IDF carbs do not come with velosity stacks as 40mm is to small for them to make a difference in performance according to Weber/Redline.
Installation Note: Will fit Type 3 Fastback and Notchback with Type 1 (upright style) engine only. Will not fit Squarebacks or Type 3’s with pancake style engines. Will not fit Buses with Type 4 pancake style engines.
Single Weber 40 IDF Kit, Bug/Ghia/Bus