Holley EFI

FeaturesBosch/EV1 style performance injector - IndividualLow impedance (2.2 Ohms) for use with peak and hold driversRated injector flow: 66 lb/hr @ 43 PSITri-cone spray pattern

This Universal 4 Cylinder EV14 Injector Harness is designed to be plug and play with HP EFI & Dominator EFI Systems, utilizing our 205 LB/HR Injector Set - Part Number 522-205.Features8mm Plug Wire...

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...

If you're thinking of building either a high performance or race multi-point fuel Injection system for your engine, look no further than Holley for the throttle body. Holley offers a line of...

FeaturesBosch/EV1 style performance injector - IndividualLow impedance (2.2 Ohms) for use with peak and hold driversRated injector flow: 120 lb/hr @ 43 PSITri-cone spray pattern

Specifically designed for use in unlimited racing applications equipped with an external, dry timing-belt, cam drive system, where the bracket must be remote mounted to a front motor plate or some...

Universal Coil On/Near Plug Harness – Use to connect Holley PN 558-312 or factory GM LSx coil harnesses to Holley HP or Dominator ECU'sFeaturesBolt on 4150 Flange Carburetor ReplacementContains 8,...

Universal Ford V8 Harness Kit for Holley HP and Dominator ECU'sFeatures40 ft of 3/8” Vapor Guard Fuel HoseDesigned for a return style fuel system.•Multi-layer rubber hose designed to withstand to...

Bright clear anodized, extruded aluminum universal fuel rails. These machined aluminum EFI fuel rails are capable of handling 1,100+ hp engines. They feature a 1/2 in. diameter inner bore to decrease...

Holley EFI Wiring Shop just keeps getting better! We have one goal, to provide you a one stop solution for all of your wiring components needs. From connectors and pins to wire loom and tools! We...

Introducing the Holley EFI Wiring Shop. We have one goal, to provide you a one stop solution for all of your wiring components needs. From connectors and pins to wire loom and tools! We have...

This harness provides a plug and play upgrade solution for those seeking to convert to Coil-On-Plug. Additionally we have pre-installed a Power Tap for easy access to 12v, 5v Reference, and Sensor...