On older vehicles and smaller engines, the carburetor controls the mixture of fuel and air that reaches the engine. Here's ...
Holley came out with the first modular carburetor, the 4150, back in '57. Today, Holley still makes the 4150-heck it even makes hopped-up versions for everything from drag racing to rock crawling.
It's been nearly 20 years since the OEs fully transitioned to EFI, and aftermarket EFI systems are becoming more affordable and easier to tune by the day. Even so, the carburetor remains the fuel ...