Holley 6-504 - Holley Needles and Seats

Alcohol
Steel-tipped seat is required for use with alcohol or other fuels corrosive to rubber. All are adjustable.

Gasoline/Marine
Viton-tipped needle resists dirt and conforms well to the seat for superior sealing. Most are adjustable and sold 1 or 10 (Gasoline only) per package.