A 1/25 scale Cragar 4-71 supercharger with triple v-belts, blower manifold for 324 Olds Rocket (ie Revell '50 Olds engine), and 4-carb plate with 4 Stromberg SP-top carburetors. Comes with a bonus additional blower casing to mount on whatever manifold you might find in your existing model kit. Includes a separate set of standalone pulleys (in case you want to make your own belts) and two extra carbs in case you lose one!