In this age of computerized fuel injection systems, many people have written off carburetors as relics of a bygone era. Lacking the array of electronic sensors that allows fuel injection to more ...

Mechanical fuel injection was always an expensive and finicky deal. Then along came the microchip and electronic injectors and everything got easier. Mainstream soothsayers predicted the total demise ...

Few names have endured longer in the automotive industry than Holley. When a couple of enterprising brothers, George and Earl Holley of Bradford, Pennsylvania, founded the Holley Motor Company in 1896 ...

Holley has always offered vacuum-secondary performance carburetors in two versions--4150 models with replaceable jets in the secondaries, and 4160 models with a metering plate and no replaceable jets.