• Specially designed Lid, filter, and base

• Helps reduce Venturi effect across the carburetor to give more consistent air into the butterfly

• Less trouble jetting

• Smoother acceleration off the center of the corner

• Straighter, Clean air to the carburetor

• No stumble due to air pressure differentials

• The lid and base have a female cavity that help align the filter with the male cavity to help gasket between them

• Any wedge nose cars like Modifieds and Late Models need to reduce the air coming across the top of the carburetor at yaw, this is the solution

**Sure seal not included with base**