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the deluxe wiring kit (not shown) and Aeromotive fuel pressure gauge
HO300-123BK
0-15 psi SPORT-COMP 2-5/8" FUEL PRESS
Dual plane design for equal distribution and great mid-range torque without comprimising top-end power
Standard Main Jet #74 HO122-74 Product:1/4-32" Thread, .0800" Hole Size (Pair) the deluxe wiring kit (notStandard Main Jet #741 4 32" Thread, . 0800" Hole Size (Pair) HO122 74 122 74 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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