Does your engine seem like it's out of breath? You can increase engine breathing with a Holley high-air-flow throttle body! Fully CNC machined from 6061 billet aluminum, these new Holley throttle bodies are designed to use the stock TPS and IAC to...

Does your engine seem like it's out of breath? You can increase engine breathing with a Holley high-air-flow throttle body! Fully CNC machined from 6061 billet aluminum, these new Holley throttle bodies are designed to use the stock TPS and IAC to...

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 universal throttle bodies that range in sizes from 1000 CFM to...

Holley's BILLET LS Throttle Bodies are the BIGGEST BORE - MOST FEATURE LOADED available. Holley went back to the drawing board and built the ultimate air valve for your LS engine! This all new design boasts a 105 millimeter bore and a low RPM drive...

Wanting to run a drive by wire throttle body on your 4150 flanged intake manifold? Tired of stretching, adjusting, or breaking throttle cables? Look no further than the new Holley EFI Billet Aluminum Throttle Body Adapters. These two new adapters will...

Holley's NEW EFI Throttle Bodies are unquestionably the BIGGEST BORE - MOST FEATURE LOADED units available on the market today. Holley went back to the drawing board and built the ultimate air valves for your hotrods power plant. The New 105mm Mono-Blade...

Holley's NEW EFI Throttle Bodies are unquestionably the BIGGEST BORE - MOST FEATURE LOADED units available on the market today. Holley went back to the drawing board and built the ultimate air valves for your hotrods power plant. The New 105mm Mono-Blade...

This CNC machined billet spacer allows for the installation of 8 additional injectors, ideal for additional fueling in high horsepower blown environments. It is also perfect for those seeking to chill their supercharged fuel injected combinations.

When converting your fuel system to a return style EFI setup, the biggest challenge can be plumbing the fuel lines. Holley continues to be the leader in fuel system development to make your life easier! The new Holley EFI Filter Regulator assembly...

Holley's NEW EFI Throttle Bodies are unquestionably the BIGGEST BORE - MOST FEATURE LOADED units available on the market today. Holley went back to the drawing board and built the ultimate air valves for your hotrods power plant. The 2550 CFM Dominator...

Holley's NEW EFI Throttle Bodies are unquestionably the BIGGEST BORE - MOST FEATURE LOADED units available on the market today. Holley went back to the drawing board and built the ultimate air valves for your hotrods power plant. The 2550 CFM Dominator...

These cast aluminum EFI intake elbows allow the use of GM LS throttle bodies on any intake manifold w/ the 4500 mounting flange. Our design incorporates an optimized transition from the throttle body to the intake plenum for maximum airflow and...