Description

DIAL-A-FLOW

The DIAL-A-FLOW opens up a new way of thinking when it comes to choosing an intake manifold. The key to this new design is the specially designed plenum chamber and FLOW CONTROL INSERTS. Simply stated, the flow control inserts control the velocity, volume, and flow of the gas/air mixture from the plenum through the runners to the intake ports. There are three basic inserts: STAGE I (Maximum velocity high torque factor); STAGE II (Mid RPM torque and horsepower range); STAGE III (Maximum RPM torque and horsepower range).

In other words, it’s possible to run, say a 550-600 CFM carb, Monday through Saturday with a Stage I Insert and maintain a reasonable level of fuel economy and low speed tractability. But on Saturday night you can bolt on a Stage II Insert and, using the same carb, be competitive at the strip. In fact, since it’s only a matter of unbolting the carb, linkage and fuel fittings, you can make the change right in the pits. (To facilitate testing procedures, Offy engineers outfitted carburetors with “quick-change” fittings that are very practical and available through speed shops everywhere.)

Now the best part; the Dial-A-Flow manifold can be tailored to your individual requirements by modifying the Flow-Control Inserts. They’re made of 316 alloy that can easily be shaped with rotary files or carborundum, yet they’re tough enough to take the extreme temperatures found in the plenum chamber.

The DIAL-A-FLOW by Offenhauser represents performance, economy, versatility as well as a challenge to hot rodders.