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Holley Accelerator Pump Nozzle

Holley Accelerator Pump Nozzle
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A good selection of accelerator pump discharge nozzle sizes is indispensable to the proper tuning of the accelerator pump system. The nozzle hole size determines the rate of fuel discharge. A larger hole will shoot the fuel at a faster rate, and with less pressure than a smaller hole. Sizes are stamped on each nozzle. For example, the number 31 indicates that the nozzle hole size is .031. Various styles of nozzles are offered by Holley.
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Note: Used On Models 4150, 4160, and 4500
Retail Price: $18.99
Sale Price:
$12.99
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Used On Models 4150, 4160, and 4500
Retail Price: $18.99
Sale Price:
$12.99
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Used On Models 4150, 4160, and 4500
Retail Price: $18.99
Sale Price:
$12.99
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Used On Models 4150, 4160, and 4500
Retail Price: $18.99
Sale Price:
$12.99
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Holley 121-131 .031in Hole Size Straight Type Accelerator Pump Discharge Nozzle
Note: Used On Models 4150, 4160, and 4500
Retail Price: $18.99
Sale Price:
$12.99
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Used On Models 4150, 4160, and 4500
Retail Price: $18.99
Sale Price:
$12.99
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Used On Models 4150, 4160, and 4500
Retail Price: $18.99
Sale Price:
$12.99
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Used On Models 4150, 4160, and 4500
Retail Price: $18.99
Sale Price:
$12.99
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Used On Models 4150, 4160, and 4500
Retail Price: $18.99
Sale Price:
$12.99
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Used On Models 4150, 4160, and 4500
Retail Price: $18.99
Sale Price:
$12.99
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Used On Models 4150, 4160, and 4500
Retail Price: $18.99
Sale Price:
$12.99
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Used On Models 4150, 4160, and 4500
Retail Price: $18.99
Sale Price:
$12.99
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Used On Models 4150, 4160, and 4500
Retail Price: $18.99
Sale Price:
$12.99
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Originally Used On Models 4165 and 4175
Retail Price: $12.99
Sale Price:
$8.64
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Originally Used On Models 4165 and 4175
Retail Price: $12.99
Sale Price:
$8.64
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Holley 121-231 .031in Hole Size Anti-Pullover Style Accelerator Pump Discharge Nozzle
Note: Originally Used On Models 4165 and 4175
Retail Price: $12.99
Sale Price:
$8.64
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Originally Used On Models 4165 and 4175
Retail Price: $12.99
Sale Price:
$8.64
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Originally Used On Models 4165 and 4175
Retail Price: $12.99
Sale Price:
$8.64
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Used On Models 4150, 4160, and 4500
Retail Price: $31.99
Sale Price:
$21.61
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: Used On Models 4150, 4160, and 4500
Retail Price: $31.99
Sale Price:
$21.61
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Product Reviews
5 out of 5 stars tune up
Review for: .035in Hole Size Tube Type Accelerator Pump Discharge Nozzle
From Laguna Niguel Reviewer: From A Customer   Own this product - Yes
after recently installing a holley i noticed less than optimal performance on full open throttle. Replacing the pump nozzle made a HUGE differnce. Its best to go 2 sizes up from what you have and the replacement takes less than 1 minute.
Some of the reviews may have been edited by our moderators in order to comply with our review guidelines.