Supreme Racing D.U.I. Distributor


Performance Distributors, manufacturer of the D.U.I.(Davis Unified Ignition) introduces the “Supreme Racing DUI Distributor.” This version of their Racing HEI incorporates four fantastic components. First, the distributor utilizes the Instant Timing Knob, which allows you to make timing adjustments quickly and easily without having to use a timing light. Simply turn the knob to advance or retard your timing. No need to loosen and re-tighten your distributor hold-down clamp. Prevents you from burning your hands making timing adjustments between your races. Secondly, the Supreme
Racing D.U.I. incorporates our an Adjustable Slip Collar. The unit features a slip collar with 7/8”of
adjustability . This is great if you’ve decked your heads or milled your block, which changes the
distance between where your distributor rests on your intake and where it meshes with your cam
gear. This will insure a precise installation, while preventing engine damage from the
distributor being out of alignment.
The third superior component is a Carbon Ultra-Poly composite distributor gear which is compatible with any camshaft. Whether you run a solid, hydraulic, factory roller, or a steel billet roller cam, the Ulta-Poly gear will provide unmatched strength and durability. Eliminates wear problems, and the hassle of replacing gears.
Fourth, of course, every

D.U.I. is calibrated on a distributor machine, providing a snappy and accurate mechanical advance.. This provides you with instant throttle response and more power.
For more information, contact Performance Distributors, 2699 Barris Dr., Memphis, TN 38132, (901)396-5782,,