PerTronix "Ignitor II" Electronic Ignition conversion kit for EITHER the Prestolite clip/screw down caps.

Fits both screw down and clip down caps!

The NEW Pertronix "Ignitor II" Electronic Ignition Conversion Kit 9-1581LS!

Pertronix went to the new style part 9-1581LS that fits both the Clip Down and Screw Down types.

• PerTronix Ignitor II lobe sensor solid-state ignition systems are smarter! Ignitor II units sense the coil current level and employ a powerful micro-controller to adjust the dwell. Variable dwell helps to maintain peak energy throughout the entire rpm range, and these systems develop up to four times more energy between 3000 and 5000 rpm than standard ignition systems. Order the kit recommended for your vehicle and engine application.
  
  Features include:
  
  * Adaptive dwell maintains peak energy throughout the entire rpm range, reducing misfires while improving engine performance
  * Develops on-average four times more available energy between 3000 and 5000 rpm, and two times more available plug voltage
  * Compensates for inherent electronic delay by adjusting the spark timing throughout the entire rpm range
  * Synchronized peak current and spark timing reduces heat build-up
  * Senses startup and develops more energy for quicker, easier starting
  * Built-in reverse polarity and over-current protection shuts down the system, preventing component damage
  * No magnetic sleeve or ring needed; uses existing distributor lobe for sensor trigger

PerTronix Recommends the Flame Thrower II Coil found HERE.

DOWNLOAD INSTRUCTION MANUAL HERE

WARNING- This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65warnings.ca.gov