Holley's HP system is intimidating when it first comes out of the box due to the complexity of the wiring, but once you study the instructions, things become clear. Everything is clearly marked ...

Dyno testing a Holley Sniper EFI kit on a 440. Does it work as advertised?

Holley's Dominator EFI, which is the next step above the HP system, is similar and for a typical small- or big-block Ford that is street driven with no power adders, trans brake, or other options ...

With the Holley four-barrel carburetor, the engine made a peak output of 363.2 hp along with 414.7 pounds-feet torque. After installing the EZ-EFI, the truck produced 366.6 hp with 423.8 pounds ...

Holley Inc. (NYSE: HLLY), commonly referred to as “Holley Performance Brands,” leads in the design, manufacturing and marketing of high-performance products for automotive enthusiasts.

Originally launched in July 2023, Sniper 2 EFI is the next generation of Holley’s groundbreaking Sniper 1 product.

The previous story demonstrated how to install a FAST EZ-EFI 2.0 electronic fuel injection (EFI) system on a 351 Cleveland, replacing the existing four-barrel c ...