Holley Standard Main Jet #87 HO122-87 Product:1/4-32" Thread, .1015" Hole Size (Pair) Smaller Internal Diameter: 19mm

Smaller Internal Diameter: 19mm

High Tensile 4340 Forged Material for Durability

Traditional Chrome Series Water Temperature Gauge2-1/16"

Sport-Comp II Boost/Vacuum Gauge2-1/16"

Part Number: AF371

Holley Standard Main Jet #87 HO122-87 Product:1/4-32" Thread, .1015" Hole Size (Pair) Smaller Internal Diameter: 19mmStandard Main Jet #871 4 32" Thread, . 1015" Hole Size (Pair) Brand: HOLLEY Part Number: HO122 87 Description: These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimetres 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.