Upgrade your engine's performance with the HEI Vacuum Advance Stop Plate by MSD IGNITION. This innovative kit limits vacuum advance, ensuring precise timing for optimal power output. Say goodbye to inconsistent spark advance and hello to smoother...

Spark Plug Wire Retainer - Plastic - Black - GM HEI Distributor Caps - Each

Spark Plug Wire Retainer - Plastic - Red - GM HEI Distributor Caps - Each

Ignition Conversion Kit - XR700 - Points to Electronic - Optical Trigger - Import / Universal 4 / 6 / 8-Cylinder - Kit

Ignition Control Module - High-Performance - GM HEI 4 Pin 1974-88 - Each

Distributor Rotor - Extreme Rotor - Brass Terminal - Honda - Each