When we first heard about Holley's 650-cfm annular-discharge-venturi two-barrel carburetor. the R-6425AAA. the comment was made. "Why that thing must be almost as good as a four-barrel." And so the ...

Carburetors are really marvelous devices. They have to be: They are required to meter air and fuel into the intake system of an engine in exactly the right proportions, whether the engine is idling, ...