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Needle and Seat Adjusting Nut
Part Number: 39160 Needle and Seat Adjusting Nut$0.55... more info -
Needle and Seat Adjusting Nut
Part Number: 39160 Needle and Seat Adjusting Nut$0.55... more info -
Nitrous switch bracket screw (Body)
Part Number: 8200BX4-4 Mounting bracket screws, mounts 8200BX4 bracket and assembly to any BX4 4150 main sections as well to most all Holley®, QFT®...$0.55... more info -
Stainless Steel Throttle Plate Screw 1/4"
1/4" Stainless Steel Button Head Throttle Plate Screw, Torx Design$0.55... more info -
4150 Throttle Adj Screw for Billet Base
Part Number:51601-1 Throttle Adjusting Screw for Billet Base, 4150$0.60... more info -
Aluminum Plug for 4x Idle Base Plate
Part Number:5304 Aluminum Plug for 4x Idle Base Plate, .215$0.61... more info -
Gasket pump nozzle screw. Metal
Part Number 8844-BLP Gasket, pump nozzle screw. Metal Sold Individually$0.61... more info -
Sec return pin for BLP. Billet base stainless
Part Number:291094-BLP Secondary Return Spring Pin Made of 303 stainless steel for use in all BLP Billet base plates.$0.62... more info -
Secondary return spring pin for 4150.
Part Number:291094 Secondary Return Spring Pin$0.62... more info -
Spring, 4150 primary idle adjustment.
Part Number:381101 Throttle Adjustment Spring, 25% Heavier$0.65... more info