Simply put, D.U.I. is three letters you never want to hear. But with a Performance Distributors
one piece ignition system, D.U.I. is three letters you cannot do without! The D.U.I. (Davis
Unified Ignition) allows you to Drive Under the Influence of more power. The newest addition
to the D.U.I. distributor lineup is now available for Toyota Landcruisers with the (F) 237 ci
and (2F) 258 ci inline 6 cylinder. The D.U.I. features a high voltage coil and high dwell module
which is located inside the distributor. Only one 12 volt hot wire is needed to get your engine
charged with a D.U.I. The distributor is custom tuned on a distributor machine for your engine
using specs such as cam duration & lift, compression ratio, vehicle weight and octane of fuel.
The high output coil and Dyna Mod module allow spark plug gaps to be opened to .055". The
combination of the custom advance curve and the high output coil and module will give you
instant throttle response, quicker starts and more horsepower. The D.U.I. is virtually waterproof
making it ideal for off-road conditions. Since the electronic components are located inside the
distributor, they are not exposed to the elements of off road conditions that will cause stock and
other aftermarket ignition systems to fail. Although the D.U.I. is uniquely designed, replacement
parts are easy to find. GM HEI replacement parts will fit right on the DUI and these parts can
be found at your local auto parts store. An optional tach hookup is included with the D.U.I.