"What's that?" you ask. "Vacuum secondaries on a full-sized race carb?" Is it heresy, or might there just be a method to the madness? We know that vacuum secondaries are a feature designed and aimed ...

For many enthusiasts, the carburetor is some sort of black magic device that feeds an engine fuel to run. Short of bolting it on and maybe turning the base idle screw to keep the car running, few ...