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• Melonized gear for steel hydraulic roller camshafts
• Racing DUI coil & dyna-module
• No add-on spark box is necessary
• Special racing advance curve
• Calibrated mechanical advance on a distributor machine with accurate timing curve
• DUI is hand built to exact tolerances
• Accurate & precise trigger signals
• Key parts of distributor are polished & lubed for smooth operation
• DUI is test fired before leaving our facility to insure all components are working properly
• Available in black, blue or red

• 4-pin dyna-module
• For a crisper, smoother running engine, replace your stock HEI module
• More "electronic dwell" in it to provide more coil saturation time
• Additional saturation time allows the coil to produce a more intense spark
• Performance Distributors Street/Strip & Racing DUI Distributors require 4-pin Dyna-Module

• Performance Distributors brass terminal cap & rotor kit
• GM HEI & all DUI, V8, internal coil, L-clamp
• Kit offers up to 50% higher dielectric strength & can handle all the voltage available
• All Brass Terminals for maximum conductivity
• Well design in the rotor eliminates burn-through
• Nylon rotor screws eliminate a "ground" for the voltage to jump at high RPM's
• Available in Blue, Black or Red

• GM Small Block & Big Block V8, DUI & HEI racing coil kit
• Designed for high revving engines that spin more
than 7000 rpm's
• Coil is capable of 10,000 rpm's which is almost twice the output of a stock HEI coil
• Installed in brass terminal cap
• Includes rotor & nylon rotor hold down screws
• With the higher voltage output, spark plug gaps can be opened up to .055"
• Kit fits on all GM V8, 6 cylinder & 4 cylinder distributors with the internal HEI coil
• Caps are available in Black, Blue, Red

• Davis Unified Ignition LiveWires Plug Wire Set for Small Block Chevy V8 HEI with 90° Boot Under Header
• High Temperature Sleeve Protects Wire Up To 1400°
• Custom Fit and Numbered for Each Cylinder
• Spiral Wound Core Prevents Radio Interference
• Low Resistance Value of 300-350 Ohms Per Foot
• Durable Silicone Jacket and Insulation
• No Cutting or Splicing – All Sets Ready to Install
• Available in Large Color Selection