IG-101 - Selecting SPARK PLUGS
IG-101A - HALO Spark Plugs - Long Term Test Report
IG-102 - Distributor BASE CLAMP
IG-103 - Distributor DRIVE GEAR ALIGNMENT
IG-104 - IGNITION COIL POLARITY
IG-105 - Distributor BUSHING REPLACEMENT
IG-106 - Ignition TROUBLE SHOOTING, the long version
IG-106A - Ignition TROUBLE SHOOTING, Diagnostic Tree
IG-107 - Distributor O-RING
IG-108 - IGNITION COIL Function and Testing
IG-109 - IGNITION COILS Variety
IG-110 - IGNITION COIL Cross Reference Numbers
IG-111 - Distributor ROTORS
IG-111A - REV LIMITING ROTOR, Lucas
IG-112 - High Tension SPARK WIRES
IG-113 - High Tension SPARK PLUG CONNECTORS
IG-114 - HT SPARK PLUG WIRE Positions
IG-115 - os - Setting IGNITION TIMING - by Les Bengtson
(in case you don't like the shop manual)
IG-116 - Setting IGNITION TIMING (practical application)
IG-116A - Setting IGNITION TIMING (more detail)
IG-117 - HOW MANY CLICKS Equals 1 Degree?
IG-118 - Removing A STUCK DISTRIBUTOR
IG-120 - VACUUM LINE For Spark Advance
IG-121 - VACUUM LINE ROUTING
IG-122 - VACUUM ADVANCE UNIT Anatomy
IG-123 - VACUUM ADVANCE UNIT Markings
IG-125 - DISTRIBUTORS Original for MGA
IG-126 - os - Lucas distributor Models and Specifications (pdf)
IG-127 - os - Tuning the Lucas distributor (159-KB pdf) - by Marcel Chichak
IG-130 - HOW SPARK ADVANCE WORKS, Mechanical and Vacuum

IG-200 - Mallory DUAL POINTS DISTRIBUTOR - How it Works, Why Dual?
IG-201 - Mallory DUAL POINTS DISTRIBUTOR - 160,000 mile report
IG-201A - Mallory DUAL POINTS DISTRIBUTOR - 200,000 miles Plus
IG-202 - Mallory POINTS Type DISTRIBUTORS - Installation & Adjustment

IG-203 - ELECTRONIC IGNITION, General Comments
IG-204 - ELECTRONIC IGNITION, Lumenition
IG-205 - ELECTRONIC IGNITION, Pertronix
IG-205A - os - ELECTRONIC IGNITION, Aldon (same as Pertronix)
  IG-205B - Pertronix Negative Earth Instructions (pdf)
  IG-205C - Pertronix Positive Earth Instructions (pdf)
  IG-205D - Pertronix MODULE TEST - Good or No-Good (pdf)
  IG-205E - Pertronix Module Troubleshooting (pdf)
IG-206 - ELECTRONIC IGNITION, MSD
IG-207 - ELECTRONIC IGNITION, Crane/Allison XR700, XR3000
IG-208 - 123 ELECTRONIC DISTRIBUTOR

IG-215 - BALLASTED IGNITION SYTEM