Holley Main Jets 73 #122-73 239013 • Head Weight: 32oz •

• Head Weight: 32oz • Overall Weight: 1280g • Head Diameter: 29mm • Overall Length: 380mm

only 345 grams

) x 1/8in Imperial O-Ring -10pk

0mm(5/32”)

drilling capacity 16

Holley Main Jets 73 #122-73 239013 • Head Weight: 32oz •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. Standard Main Jet . 073" Jet size 1 4 32 Thread Sizes from 40 110 Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500