For those that choose ease of maintenance along with performance gains, the single 40 IDF is the set-up of choice for the basic 1600-1800cc. This carburetor kit comes with an assortment of jets to tune your carburetor. This kit features an aluminum center-section manifold, aircraft style heim joint linkage, chrome air cleaner with gauze element, gaskets and hardware. Complete with detailed and illustrated instructions. 45-0040