An advanced design that allows faster and smoother airflow through the venturiA strong vacuum at the needle jet nozzle results in more efficient, quicker fuel draw for instant throttle responseCarb body accepts the power-jet and accelerator pump kitsUses standard VM-type mounting flanges and most of the same tuning componentsNOTE: 32, 34 and 36mm carbs are equipped with 3.3 needle valve for gravity feed applications. The 38mm carbs are equipped with a 1.5 needle valve. For applications with a fuel pump, order PART #7864600115, SUG. RETAIL $17.95.