Ignition Points-to-Electronic Conversion Kit Model: Ignitor For V8 1957-1974 Trigger Type: Hall Effect Voltage: 12 Volt Ground: Negative Ground Distributor Advance Type: Vacuum and Mechanical Advance Multiple Spark: No Lobe Sensor: No Includes Rev Limiter: No Compatible with CD Ignition Boxes: Yes Fits Distributor(s): Fits Motorcraft single-point distributors. Not for use with solid core spark plug wires. Operating Voltage: 8 V to 16 V DC Temperature Range: -50 to 300°F RPM Range: 0 to 15,000 RPM 12-V Negative Ground (some 6-V negative ground, 6 & 12-V positive ground kits available) Note: Installation guide not included; professional installation is recommended. Verify compatibility to ensure the item meets your requirements. Product design may vary slightly between batches, including color variations, which do not affect functionality. Accessory harness color is random and cannot be specified. Color: As shown Material: Plastic + Metal Package Contents: 1 x Electronic Conversion Kit 1281 Note: Light reflection and display settings may cause slight color differences between the image and the actual item. Measurement error allowance: +/- 1-3 cm.