Holley 121-142: 121-142 Straight Nozzle Hole size .042"
Straight Nozzles *For 4150/4160/4500 carbs
Straight Nozzle Hole size .042'' Hollow nozzle screw included
Straight Nozzles *For 4150/4160/4500 carbs
Straight Nozzle Hole size .042'' Hollow nozzle screw included