Standard Main Jet #43 HO122-43 Pulleys & Spacers easier packaging for tight hood

easier packaging for tight hood clearance and reduced weight Brass throttle blades control vibration & reduce thermal expansion Throttle blades attached to stainless steel shafts w/ aircraft quality hardware and peened to assure positive retention Bodies are machined from 6061-T6 billet aluminum for consistent quality

Effective to 6

Ultra-Lite Digital Series SpeedometerDigital

Splined shafts have two inches of spline that can be easily trimmed one inch per side

Standard Main Jet #43 HO122-43 Pulleys & Spacers easier packaging for tight hoodStandard Main Jet #431 4 32" Thread, . 043" Hole Size (Pair) HO122 43 122 43 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.