Weiand supercharger kits can be found in all aspects of racing from tractor pulls to quarter mile runs. 8-71 kits include: 8-71 supercharger with gears and bearing plates, supercharger intake manifold, 2-4V carburetor adapter, supercharger to manifold gasket, carb adapter to supercharger gasket, belt, pulleys, brackets, idler and necessary fastners.