It's springtime! Time to start working on your project car, learn a new wrenching skill, discover what everything is under the hood (and how it works), or just spruce up your daily driver. All month, ...

So you think you know how a carburetor works? Let's find out. Can you detail the major players in the idle circuit? What part does the power valve channel restrictor play in the main metering circuit?

Many of you have followed our "How It Works" series since its inception in the January, 1993 issue of HOT ROD and have told us exactly how much it is appreciated. In the 27 issues that followed we've ...