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Pertronix 91481 Ignitor II Adaptive Dwell Control for Holley 8 Cylinder

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$185.99

$ 84 .99 $84.99

In Stock
  • Develops on average 4 times more available energy between 3000 and 5000 RPM, and 2 times more available plug voltage when used with Pertronix Flame-Thrower Coils
  • Adaptive dwell maintains peak energy throughout the entire RPM range, reducing misfires while improving engine performance
  • Synchronized peak current and spark timing reduces heat build-up and compensates for inherent electronic delay by adjusting the spark timing throughout the entire RPM range
  • Senses startup and develops more energy for quicker, easier starting
  • Pair with Pertronix Flame-Thrower Canister Coils 45001, 45011, 45111 for optimal performance


Ignitor Electronic Ignition Conversion Kits have proven themselves in applications ranging from race cars to tractors. It is the number one Electronic Ignition Conversion Kit to replace original mechanical points. A Pertronix Points Conversion kit allows you to run a stock distributor while improving the reliability and performance of your ignition system. The Pertronix Ignitor kits simply bolt to the distributor in place of the points assembly and provides a much more accurate trigger signal. This improves the timing accuracy and prevents ‘points bounce’ at higher rpm. The electronic technology also improves the dwell control to improve the spark output of the coil resulting in a hotter spark at the spark plug. With this dependable, self-contained, maintenance free electronic ignition system you'll never replace your points again.


Raelene Buckley
Reviewed in Australia on August 15, 2021
Useful product
R. Davis
Reviewed in the United States on September 7, 2017
The first one I received failed within 48 hours, but I contacted Pertronix and they sent me a replacement that is working great. Their customer support has been very helpful. Recently back from a 1,200 mile round-trip after 4-wheeling in the mountains of New Mexico. On previous trips, I got 9 mpg, but on this one I ranged from 10.5 - 14 mpg. The engine starts easier than with points, but I keep spare points and condenser in the glove compartment just in case. For my install I bypassed the ballast resistor and connected 12v directly to the stock coil, removing the wire from the solenoid to the ballast resistor and then to the coil. I also cleaned really well the negative ground from the battery to the engine (this is important). Changing from points to electronic does require re-timing the engine and re-setting the idle mixture screws so be prepared to do that or have it done.
Randy M.
Reviewed in the United States on May 24, 2017
It worked perfectly until today? Purchased on October 24, 2016. Left me stranded. I had to have the truck towed. Took out the ignition points hoping for reliability, I didn't get it. Fortunately I kept the points and condenser. I reinstalled, old reliable technology. I'll call to ask for a replacement.UPDATE: Call Pertronic customer service, will ship out a new one
Carl Perkins
Reviewed in the United States on August 14, 2016
I'll keep this simple. I removed the points, installed this module and started the truck. It started on the first try and runs fine. The timing is spot on where I set it when the points were in there.
Ryan S.
Reviewed in the United States on February 2, 2016
Product work great, I used it on a 1976 IHC Scout with mostly stock 345 engine, it now makes power all the way to 5000rpm. Used with Flame thrower II coil.
Robin Sonsel
Reviewed in the United States on February 14, 2015
Worked great. Easy install.
Isaac Fredricks
Reviewed in the United States on November 26, 2015
As far as i can tell the product is defective. It worked for me for two weeks and then quit and left me stranded.
Aubrey Allmond
Reviewed in the United States on May 25, 2014
Made a huge difference on my Scout. Easy to install. It didn't quite slip on as easy as I thought. It took a little wiggle and just the right angle to get the magnet on. Be careful to not drop any tiny screws. I ended up having to take some timing out after the install.
Evan
Reviewed in the United States on June 1, 2012
There is not much I can say about this thing. It fit and conversion could not have been easier. The company also has some good resources available on their website for instillation and troubleshooting. To me this is a much better option for a direct points replacement than an MSD ignition as it doesn't require any special hardware or additional boxes.
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