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Comments about PerTronix 91281 Ignitor II Adaptive Dwell Control Ford 8 cyl:
I installed this part in my classic 1967 Galaxie to improve performance. I think it provides better spark to the cylinders.
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Q:What is the differance between the Petronix model 1281 and this model 91281. Each says that it is an exact fit for my vehicle a 1968 Ford Mustang with a 302 V8 and 4 speed transmission. Also there is a price differance with the 91281 being more expensive. Thanks
A:This part Pertronix Ignitor, Part No. 91281 is an exact fit for your 1968 Ford Mustang with a 302 V8 and 4 speed transmission. The only difference between the parts Pertronix Ignitor 91281 and Pertronix Ignitor 1281 is that Part No. 1281 is based on IGNITOR electronic ignition system where as Part No. 91281 is based on IGNITOR II electronic ignition system. IGNITOR electronic ignition system: System is designed for use with most point-type coils., Works great in stock point-type distributors as a trigger for multi-spark CD ignitions, eliminating the need for expensive aftermarket distributors., No complicated wiring makes installation easy., A solid-state electronic ignition system. Never change points again!. IGNITOR II electronic ignition system: Ignitor II systems develop up to 4 times more energy between 3000 and 5000 RPM than standard ignition systems., Adaptive dwell maintains peak energy throughout the entire RPM range, reducing misfires while improving engine performance., Develops on average 4 times more available energy between 3000 and 5000 RPM, and 2 times more available plug voltage., Peak current level is reached just prior to spark for maximum energy without the heat build-up, increasing coil and module life., Adjusts spark timing at higher RPMs to compensate for the inherent electronic delay., Senses start-up and develops more energy for quicker, easier starting. Built in reverse polarity and over current protection shuts down the system, preventing component damage.