K&N Stubstack Air Horn 5-13in L x 5-13in W x 1-68in H - ( K&N Engineering 85-0400 )

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.

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. The K&N Stubstack is designed to increase the airflow of carburetors.

K&N Stubstack Air Horn 5.13in L x 5.13in W x 1.68in H

STUBSTACK-HOLLEY MILLED CHOK

Bocina de aire Stubstack

Stubstack Air Horn

Carburetor Mount