A good upgrade for slightly modified engines. Convert fuel injected 2.0 engines to weber 40 mm (40 idf) dual throat carbs. Each kit contains two carburetors, cast aluminum manifolds, fuel line, clamps and all necessary gaskets. The special mounting hardware for the linkage arms is made from an aluminum alloy casting that is much stronger and more rigid than a thin metal stamping. The throttle arms ride in individually adjustable heim (ball) joints for easier adjustment and smoother throttle response. This kit is for off-road and racing use only, and must never be used on the highways in california. When switching from fuel injection to carburetors, each kits require a lower-pressure fuel pump (part number run7304815) and a different distributor (part number r0231178009)