Mr. Gasket 6409 - Mr. Gasket Velocity Stack Details

Made to increase engine performance by improving the airflow in the carburetor, this Performance Induction Stack is designed to simply bolt on to most Holley 4 bbl. carburetors and provide a real performance boost. It can be used alone or in conjunction with most air cleaners, provided there is adequate (2" min.) clearance between the stack and the air cleaner top. Tests with a 780 Holley carburetor have shown this unit to increase airflow by up to 5% over competitive products. The Performance Induction Stack is made from durable, heat resistant/flame retardant black plastic and is ideal for use on the race track as well as on the street. Not for use with spreadbore carburetors.