Abstract: A carburetor attachment assembly for improved engine performance including an airflow crown and a mating air cleaner base. The air flow crown is adapted to detachably mount atop a carburetor and has a contoured intake surface that guides and directs airflow into the mouth of the carburetor. The airflow crown's intake surface is configured to merge with the sidewalls of the induction bores to form a smooth continuous surface around the mouth of the carburetor and induction bores, which helps facilitate laminar airflow and redirection of the intake air flow downward into the carburetor.

Abstract: The air filter assembly or “air box” includes a flat base tray mounted to velocity stacks and a detachable filter box. The base tray includes a number of pliable mounting shoes, which are seated within openings formed in the base tray. The mounting shoes are formed or molded of a pliable synthetic rubber and are configured to have a number of ports through which the velocity stacks extend. Each stack port is defined by a bowl shaped depression that diverges into an annular collar. The base tray is mounted to the velocity stacks by hose clamps that compress the annular collars of the mounting shoes around the stacks. The detachable filter box is held to the base tray by six quick release latches.

Abstract: A filter for internal combustion engine air intake comprised of a synthetic fiber media uniquely enhanced with a gradient density configuration. The media described in this application is a low restriction synthetic fiber media enhanced with gradient density configuration to greatly improve efficiency and dust holding capacity. The invention is for use and configuration for use in engine intake air filtration.