Holley 121-145: 121-145 Straight Nozzle Hole size .045"
Straight Nozzles *For 4150/4160/4500 carbs
Straight Nozzle Hole size .045'' Hollow nozzle screw included
Straight Nozzles *For 4150/4160/4500 carbs
Straight Nozzle Hole size .045'' Hollow nozzle screw included