Out flows factory manifolds up to 12%! Replace your rusty and carbon plugged manifold and increase performance at the same time. Fits both early and late 6 and 12 volt Solex Carbs. Allows use of early or late, wide or narrow flange carbs and any combination of stock or high performance air cleaners. Includes a cast-in boss for vacuum port, if needed just drill and tap. PICT Center Section Manifolds can be used on all 1966 1300cc and later upright engines with use of Dual Port End Pieces.

The design of the inner passages increases the flow of intake gases while at the same time helps smooth out the reverse wave created when the intake flow is "pulsed" by the opening and closing of the intake valves. The result is more useable horsepower from stock carburetors.