Performance Distributors Ford D.U.I. (Davis Unified Ignition) is the original one-piece ignition
system for Fords! This is a simple, drop in unit. The coil is inside the cap and the module is
inside the distributor. Just run one 12 volt hot wire to the distributor and you're ready to run!
There is also an optional tach hook-up. The D.U.I. eliminates ALL of the messy wiring found
on stock Ford electronic ignition systems. This really cleans up the engine compartment.
The Street/Strip Ford D.U.I. is built with a 50,000 volt coil that allows a whopping .055" plug
gap to be run and this will provide a more powerful burn of the fuel mixture. The Dyna
Module is designed with more electronic dwell time producing a hotter spark. No ballast
resistor is used. Stock Ford systems, and many aftermarket systems require a ballast resistor
which reduces the voltage in the ignition system. The D.U.I. allows FULL voltage into the ignition
system, providing a better spark and more power.
Every D.U.I. is curved on a Distributor machine based on the specs of your Ford motor. A super
smooth curve will eliminate engine damaging detonation provide instant throttle response.
The Ford D.U.I. is a real work of craftsmanship. Although it is uniquely designed, replacement
parts are easy to obtain. High Energy Ignition (H.E.I.) replacement parts will fit right on the D.U.I. The unit is polished and lubed as it is
assembled. Built for durability, the D.U.I. has an upper and a lower bushing, unlike stock Ford distributors with only one bushing. All
Street/Strip DUI's come with vacuum advance but can be built with mechanical advance only at no extra charge.
*Due to the large cap design, the DUI distributor may interfere with the thermostat housing on a 460. A replacement thermostat housing is available through us
for $25.00 or can be obtained from a local auto parts store. Call or email for part numbers.
| Part # | Application | Reg. Price | Sale Price |
|---|---|---|---|
| 31820 | Ford Street/Strip DUI: 221-289-302 cid | $332.10 | |
| 32820 | Ford Street/Strip DUI: 351C-400M-429-460 cid | $332.10 | |
| 33820 | Ford Street/Strip DUI: FE 352-360-361-390-427-428 cid | $346.50 | |
| 35820 | Ford Street/Strip DUI: 351 cid Windsor | $332.10 | |
| 37820 | Ford Street/Strip DUI: 232 cid (3.8L) V6 | $350.10 | |
| 38820 | Ford Street/Strip DUI: 302 w/ Factory Roller Cam | $359.10 | |
| 39820 | Ford Street/Strip DUI: 300 cid Inline 6 cylinder | $332.10 | |
| 39820-144 | Ford Street/Strip DUI: 144 & early 170 cid w/ 1/4" oil pump drive | $350.10 | |
| 39820-200 | Ford Street/Strip DUI: 170 - 200 cid Inline 6 cylinder | $350.10 |
The Race Ford D.U.I. (Davis Unified Ignition) is a one-piece ignition system that is designed for
9000 RPM's. It has the Racing D.U.I. Coil mounted inside the distributor cap and the Dyna-Module
inside the distributor. It is an easy drop in installation with a one wire hook-up and no spark boxes
are needed! This is the only one-piece, magnetic, 9000 RPM distributor available for the Fords.
The Racing D.U.I. only draws 2 to 3 amps off of the battery, whereas point type ignitions and spark
boxes drain 10 amps or more. The Racing D.U.I. Coil and the Dyna-Module produce a long duration
spark allowing spark plug gaps to be opened up to .050"-.055". Magneto ignitions can only run
.015"-.025". The Race D.U.I. sends twice as much fire into the combustion chamber than a magneto.
Horsepower is gained because more fuel is burned on each piston stroke. Spark Plugs stay cleaner
longer. The Race D.U.I also makes point-type systems obsolete and saves time and money because
points do not have to be changed for every race. The Racing D.U.I. Coil is designed to run cooler
than all other coils including oil-filled coils. The units wider distributor cap terminal spacing eliminates
cross fire which occurs in small diameter caps.
The Racing Ford D.U.I. advance system is curved for better throttle response and more power. All of
the moving parts are hand fitted to assure the smoothest advance curve possible. The weights are
fabricated from very high quality hardened steel which makes them virtually maintenance free. More
timing can be run (without detonation) than with stock distributors and after market curve kits. Each distributor is curved on a
distributor machine for the engine it is going into according to the customers engine combination. These units are available with or
without vacuum advance and include a brass terminal cap and rotor in bright blue, racing red or black.
| Part# | Application with Vacuum Advance | Reg. Price | Sale Price |
|---|---|---|---|
| 318211 | Ford Racing DUI: 221-289-302 cid w/ vac advance | $395.10 | |
| 328211 | Ford Racing DUI: 351C-400M-429-460 cid w/ vac advance | $395.10 | |
| 358211 | Ford Racing DUI: 351 cid Windsor w/ vac advance | $395.10 | |
| 398211 | Ford Racing DUI: Inline 6 Cyl. 240-300 cid w/ vac advance | $395.10 | |
| Part# | Application without Vacuum Advance | Reg. Price | Sale Price |
| 318212 | Ford Racing DUI: 221-289-302 cid w/ mechanical advance only | $395.10 | |
| 328212 | Ford Racing DUI: 351C-400M-429-460 cid w/ mechanical advance only | $395.10 | |
| 358212 | Ford Racing DUI: 351 cid Windsor w/ mechanical advance only | $395.10 | |
| 398212 | Ford Racing DUI: Inline 6 Cyl. 240-300 cid w/ mechanical advance only | $395.10 |
