Standard Fitting Tube 3/8" Thread 9/16-24 (A) x 5/8-18 (B);.
HOLLEY CARBURETOR STANDARD MAIN JETS HLY122-66 PAIR .066" JET HOLE SIZE AED RACE
HOLLEY CARBURETOR STANDARD MAIN JETS HLY#122-69 PAIR .0693" JET HOLE SIZE RACE
HOLLEY CARBURETOR STANDARD MAIN JETS HLY#122-75 PAIR .082" JET HOLE SIZE RACE
HOLLEY CARBURETOR STANDARD MAIN JETS HLY122-64 PAIR .064" JET HOLE SIZE AED RACE
HOLLEY CARBURETOR STANDARD MAIN JETS HLY#122-71 PAIR .075" JET HOLE SIZE RACE
HOLLEY CARBURETOR STANDARD MAIN JETS HLY#122-74 PAIR .080" JET HOLE SIZE RACE