20003 - Holley Airflo w/ Choke Tower

Holley 4-bbl w/ Choke AIRFLO Air Cleaner Insert. Fits Holley carburetor with a choke tower. The incoming air on a round air cleaner is drawn in through the outer diameter of the air cleaner by engine vacuum. As this air rushes towards the center of the air cleaner it collides with itself creating turbulence. This turbulence slows down the entry of the incoming air into the carburetor just enough to affect the power output of the engine. The AIRFLO simply provides a smooth transition from the perimeter of the air cleaner down into the carburetor ventures. By eliminating the turbulence, it actually helps get more air into the engine. More air draws in more fuel from the carburetor and more air and fuel means more horsepower.