• 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**
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