20R Sidedraft Manifold 48mm & Larger Carburetors 0 Sidedraft Manifold w/ Linkage (48mm & Larger Carbs) If you are running 48mm or larger sidedrafts then this is the manifold you need. The two-piece design allows the carburetors to be spread apart from each other so you don't get any linkage... $401.65 Quick view add to cart Add Wish List add to cart