Holley 121-150: 121-150 Straight Nozzle Hole size .050"
Straight Nozzles *For 4150/4160/4500 carbs
Straight Nozzle Hole size .050'' Hollow nozzle screw included 2 Pack
Straight Nozzles *For 4150/4160/4500 carbs
Straight Nozzle Hole size .050'' Hollow nozzle screw included 2 Pack