<p>The Edelbrock Metering Jet is designed for use with the Edelbrock Performer Series and Thunder Series AVS carburetors. The jet and rod is changed to get the cruise air / fuel ratio leaned out. The step in the rod changes the effective jet area between high and low manifold vacuum conditions.</p> <b>Features</b> <ul> <li>Gasoline type</li> <li>Drill size is 0.100 in.</li> <li>Made of brass</li> <li>Jet and rod is changed to get the cruise air/fuel ratio leaned out</li> <li>Circuits are checked for proper sizing and the calibration is checked for proper jets, primary and secondary metering rods</li> </ul>- SKU: KSAO45275