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Aeroflow air filter assemblies work with all popular standard 4150 (5-1/8"" / 130mm) carburettors and 4500 Dominator (7-5/16"" /186mm) carburettors
125" LengthSuit Small Block Chevy
AF64-2046BLK
Universal Fabricated Alloy Tank4L capacity
Standard Main Jet #63 HO122-63 Product:1/4-32" Thread, .062" Hole Size (Pair) Aeroflow air filter assemblies workStandard Main Jet #631 4 32" Thread, . 062" Hole Size (Pair) HO122 63 122 63 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.
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