There's a lot to be said for simplicity, and a great example is a carburetor compared to fuel injection. It goes without saying that electronic fuel injection is sophisticated and can be easily tuned ...

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.