Our 7448 350 2BBL carburetors are designed for applications where the rules require use of a gauge legal 7448 carb. These are blueprinted to maximum legal tolerances, and have a heavily reworked fuel curve. These are much more responsive than a “stock” 7448 and provide a large power gain. These are great for limited late models and IMCA stock cars that must run a 350 2BBL.