Holley Main Jets 67 #122-67 6481320 5 inch muffler for dual

5 inch muffler for dual exhaust is fit on most vehicles

Overall length 82mm

- The product places the greatest number of wire tips on the work surface for fast cutting action and long life

• 1/4-32 Thread

6 1977-1979 (Rear)

Holley Main Jets 67 #122-67 6481320 5 inch muffler for dualThese 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 . 067" Jet size 1 4 32 Thread Sizes from 40 110 Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500