Carburetor Standard Main Jet - 122-56 h-pipe V8 GAS OHV Naturally Aspirated

V8 GAS OHV Naturally Aspirated 1999 GMC Sierra 1500 SL Extended Cab Pickup 3-Door 5

giving it the amazing ability to draw from nearly any area that has contact with fuel and then store it in its internal reservoir

Engine: 235 CID 6 Cylinder

these systems include all necessary parts

Part Number: 8425461

Carburetor Standard Main Jet - 122-56 h-pipe V8 GAS OHV Naturally AspiratedOverview: These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimeters per minute" and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main jets are flow tested and then stamped with the correct number. Click on Catalog Product Page for complete listing of jets and sizes. Features: Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 &