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K&N Stubstacks

3.43 out of 5 stars 14 Customer Reviews

K&N Stubstacks reduce turbulence, improve metering accuracy, and straighten and increase the airflow by reducing restrictions. Hot Rod magazine's flowbench testing recorded an airflow increase of 28 cfm on a 650 cfm carb, and 40 cfm on an 850. This extra airflow builds up to 10 percent more horses. They fit standard bore Holley carbs, and work best with 4 in. or 5 in. tall elements.

Results 1 - 3 of 3

Carburetor Stubstack, Polyurethane, Black, 1.69 in. Tall, 6.96 in. Diameter, fits Holley Series, 4150, 4160, Each

Part Number: KNN-85-0200

3.45 out of 5 stars ( 11 )

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Carburetor Stubstack, Polyurethane, Black, 1.5 in. Tall, 6.77 in. Diameter, fits Edelbrock, AFB, Performer, Square Bore, Each

Part Number: KNN-85-0700

4.0 out of 5 stars ( 1 )

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Carburetor Stubstack, Polyurethane, Black, 1.69 in. Tall, 6.96 in. Diameter, fits Holley Series, 2300, Each

Part Number: KNN-85-0210

3.0 out of 5 stars ( 2 )

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