Ignitor III electronic ignition fits 1951-1971 V8 models. Prestolite single or dual-point distributors. See Applications Below.

The Pertronix Ignitor III is the most advanced points replacement kit yet. It is literally an ignition box inside your distributor. It features multiple sparks throughout the entire RPM range and a high resolution REV limiter accurate to +/- 50 RPM which is set by the user. The Ignitor III module generates 5 times more spark than points. This of course means more spark energy creating more horsepower and better mileage.

Features:

• Adaptive dwell maintains peak energy throughout the entire RPM range, reducing misfires while improving engine performance
• Peak current level is reached just prior to spark for maximum energy without the heat build-up, increasing coil performance and module reliability
• Adjusts spark timing at higher RPMs to compensate for the inherent electronic delay
• Senses startup and develops more energy for quicker, easier starting
• Senses crank orientation from either the distributor cam lobe or a PerTronix magnet sleeve
• Thermal clad surface mount construction for high performance reliability
• Memory safe function for user settings
• LED user feedback for rev limit confirmation
• Built-in reverse polarity and over current protection shuts down the system, preventing component damage
• Legal in all 50 states and Canada (C.A.R.B. E.O. #D-57-8)
• Multiple sparks throughout the entire RPM range
• Integrated digital REV limiter
• Adaptive dwell maintains peak energy
• Built-in protection for key left on condition
• Memory safe function stores settings 

Applications:

Chrysler, Dodge, & Plymouth 8-Cyl engines.
1951-58 331 CID engines with Autolite IBK & IAZ series distributors.
1957-62 All 8-yl with Autolite IBP series distributors.
1959-71 383-440 CID including HEMI with Autolite / Prestolite dual point
    distributors.