Holley Accelerator Pump Discharge Nozzles Product images may differ from actual product appearance. A wide selection of discharge nozzle sizes is invaluable to properly tune an accelerator pump system. The hole size determines the rate of discharge. A larger hole will shoot fuel at a faster rate with less pressure than a smaller hole. Nozzle sizes are stamped on each shooter (for example, a 31 stamp indicates a hole size of .031''). *2 gaskets included unless otherwise noted

510-121-225

Anti-Pullover Nozzle Hole size .025'' View this item

$13.99 Ships 02/22/12

510-121-228

Anti-Pullover Nozzle Hole size .028'' View this item

$8.99 Ships

510-121-231

Anti-Pullover Nozzle Hole size .031'' View this item

$8.99 Ships

510-121-237

Anti-Pullover Nozzle Hole size .037'' View this item

$8.99 Ships 02/22/12

510-121-240

Anti-Pullover Nozzle Hole size .040'' View this item

$13.99 Ships 02/22/12

510-1008-844

Nozzle Gaskets 10 per package View this item

$11.99 Ships

510-121-325

Center Squirter Nozzle Hole size .025'' View this item

$9.99 Ships

510-121-6

Holley Accelerator Pump Discharge Nozzel Screw Designed for nozzle size .040 & up Solid Screw View this item

$11.99 Ships

510-121-7

Discharge Nozzle Screw Hollow .070'' View this item

$8.99 Ships

510-121-5

Pump Discharge Needle .050'' Hole Gaskets not included View this item

$8.99 Ships

510-121-118

Straight Nozzle Hole size .018'' Hollow nozzle screw NOT included View this item

$12.99 Ships

510-121-121

Straight Nozzle Hole size .021'' Hollow nozzle screw NOT included View this item

$12.99 Ships

510-121-125

Straight Nozzle Hole size .025'' Hollow nozzle screw NOT included View this item

$12.99 Ships

510-121-128

Straight Nozzle Hole size .028'' Hollow nozzle screw NOT included View this item

$11.99 Ships 02/27/12

510-121-131

Straight Nozzle Hole size .031'' Hollow nozzle screw NOT included View this item

$11.99 Ships

510-121-132

Straight Nozzle Hole size .032'' Hollow nozzle screw NOT included View this item

$11.99 Ships

510-121-135

Straight Nozzle Hole size .035'' Hollow nozzle screw NOT included View this item

$11.99 Ships

510-121-137

Straight Nozzle Hole size .037'' Hollow nozzle screw NOT included View this item

$11.99 Ships

510-121-140

Straight Nozzle Hole size .040'' Hollow nozzle screw included View this item

$11.99 Ships

510-121-142

Straight Nozzle Hole size .042'' Hollow nozzle screw included View this item

$11.99 Ships

510-121-145

Straight Nozzle Hole size .045'' Hollow nozzle screw included View this item

$11.99 Ships

510-121-147

Straight Nozzle Hole size .047'' Hollow nozzle screw included View this item

$11.99 Ships

510-121-150

Straight Nozzle Hole size .050'' Hollow nozzle screw included View this item

$11.99 Ships

510-121-25

Tube Nozzle Hole size .025'' View this item

$21.99 Ships

510-121-28

Tube Nozzle Hole size .028'' View this item

$21.99 Ships

510-121-31

Tube Nozzle Hole size .031'' View this item

$19.99 Ships

510-121-35

Tube Nozzle Hole size .035" View this item

$19.99 Ships

510-121-37

Tube Nozzle Hole size .037'' View this item

$19.99 Ships

510-121-40

Tube Nozzle Hole size .040'' Hollow nozzle screw included View this item

$19.99 Ships

510-121-42

Tube Nozzle Hole size .042'' Hollow nozzle screw included View this item

$19.99 Ships

510-121-45

Tube Nozzle Hole size .045'' Hollow nozzle screw included View this item

$19.99 Ships