Sean Murphy of SMI (Sean Murphy Induction) is one of the few carburetor builders and tuners around who is still trying to advance the art of racing with a Quadrajet. We recently spent some time with ...

If there were a category titled Good Carb, Bad Reputation, the Rochester Quadrajet would be at the top of that hit parade. It's doubtful there is a domestic fuel mixer more universally misunderstood ...

There are several good reasons GM chose the Rochester four-barrel "Quadrajet" carburetor to fuel some of the best musclecars ever made. The Q-jet, as it has become known as over the years, is an ...

For those who prefer to run your street engines with a Rochester Quadrajet, here are a couple of tips that can very useful. It’s common knowledge that the secondary metering rods determine the jetting ...