Calibrate the accelerator pump discharge volume to your particular application by changing the pump nozzle. Use of the hollow screw allows increased fuel flow ensuring the nozzle is the controlling factor in fuel delivery. Choose either the tube type or s

Anti-pullover nozzles are used to combat a condition that is sometimes called "pump pull-over". As a stream of air rushes past the discharge nozzle it has a tendency to pull fuel from the nozzle, especially on smaller cubic inch engines. Sold per pair.

Pair of 30cc accelerator pump diaphragms

Screamin' Demons are the latest development in the evolving family of Demon performance carburetors. Screamin' Demons were designed with the weekend racer in mind. They are available in 650-850 cfm mechanical secondary models, as well as a 750 cfm vacuum...

Accelerator pump check valve for use with Street Demon® carburetors

Calibrate the accelerator pump discharge volume to your particular application by changing the pump nozzle. Use of the hollow screw allows increased fuel flow ensuring the nozzle is the controlling factor in fuel delivery. Choose either the tube type or s

Anti-pullover nozzles are used to combat a condition that is sometimes called "pump pull-over". As a stream of air rushes past the discharge nozzle it has a tendency to pull fuel from the nozzle, especially on smaller cubic inch engines. Sold per pair.

Inlet needle and seat assembly for Street Demon® carburetors

Fast idle solenoid for Street Demon carburetors

Anti-pullover nozzles are used to combat a condition that is sometimes called "pump pull-over". As a stream of air rushes past the discharge nozzle it has a tendency to pull fuel from the nozzle, especially on smaller cubic inch engines. Sold per pair.

Holley's BILLET LS Throttle Bodies are the MOST FEATURE LOADED available. Holley went back to the drawing board and built the ultimate air valve for your LS engine! The 112-589 throttle body features a 90 millimeter bore and a low RPM drive friendly...

Holley's new 1000 CFM Throttle Body shares the same air entry area design that powers every NASCAR Sprint Cup Series™ car! The throttle body features integrated throttle position, idle air control and intake air temperature sensors, Ford and GM...