"Hey, how tough can it be? Just turn the screw and you're done, right?" There's a lot more to learn about setting idle mixture than just turning a couple of screws and slamming the hood closed. You ...

Little things can make a big difference in how an engine performs. Street engines spend a lot of time at idle and off-idle speeds, so on carbureted engines it's important that the idle mixture be ...

Look under the hood of a hopped-up classic truck and you're likely to find an engine topped with a four-barrel carburetor. Thanks to the flexibility of a pair of primary venturis for low to mid-rpm ...