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Main Jet Extension

Holley Performance 

Main Jet Extension - 122-5000

Main Jet Extension 122-5000
  • Main Jet Extension
  • Pair

Your Price: $10.21

Details & Buy

Universal fit item.
May require custom or special installation.

Holley Performance 

Main Jet Extension - 122-5002

Main Jet Extension 122-5002
  • Main Jet Extension
  • For HP Carburetors

Your Price: $17.31

Details & Buy

Universal fit item.
May require custom or special installation.

Holley Performance 

Main Jet Extension - 122-5003

Main Jet Extension 122-5003
  • Main Jet Extension
  • Fits w/Holley XP Fuel Bowls
  • For Use w/Methanol
  • Pair

Your Price: $18.22

Details & Buy

Universal fit item.
May require custom or special installation.