K&N 85-0400 Stubstack Milled Air Horn, Poly, Holley 4150/4160, Each
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This part will be shipped by the manufacturer. We estimate this item will ship on or before March 24th.
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This K&N Stubstack is designed to be used with Holley 390-850 cfm square bore carbs (4150/4160), that have had the choke horn milled off and still use an air cleaner. Eliminates the need for hand polishing and radius work. Will work with all K&N Custom Chrome Racing Air Cleaners, including Tall Velocity Stack Air Cleaners. The K&N Stubstack is designed to increase the airflow of carburetors by decreasing the restriction around the choke horn.
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