Recent Posts

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I have a Pertronics in my green 427 GT-E that has been there since 1994. No issues. I use the Pertronics inside a stock distributor to fire an MSD 6AL. To run the tach I have an MSD Tachometer adapter. It's way overkill, I was young and dumb when I installed it. If I ever fails I will put it all back stock again.

A friend wanted to convert his 428SCJ 1969 Mach 1 to a Pertronics to make it "more reliable". He bought one, put it in, and the car would not run at all. The brand new Pertronics II was bad right out of the box. Summit Racing was kind enough to send a second one, and then a third before we got one that worked.

My recommendation is to run points for best reliability. A spare set of points and condenser in the glove box, you will never have to walk home or call a wrecker.
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Thanks everyone ,all of your input and opinions helps educate me and helps me decide what I am going to do. My customer will probably never go to the dragstrip and the most this car will be driven will probably be once a month or so to cruise in's and shows. I have never had that many problems with stock distributors in stock cars. We have the correct distributor for this 681/2 car I am working on so I am leaning toward just leaving it original. I don't want to have any issues with the 8 grand original tach that works well. If it isn't broke don't fix it mentality. Thanks Roy
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Plenty of K code restorers and owners at the ConcoursMustang site.  If you own a car then the K code specific items are only about 5% of the total car and there is plenty of help, current threads and articles to help with restorations and those little factory details.

More than happy to help were we can.
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Had a Pertonix in my Boss for a couple of years never seemed to bother the tach readings. But as others have, I pulled the system after it caused too many break downs as well it did on another car after only 6 hours of use.
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I've been running the Petronix in my 70 CJ since 2003 and my 69 since 99 with NO problems in either!
Woody
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I am planning on installing the Pertronix module in the stock CJ Distributor, will that interfere with the factory tachometer operation?


I know this topic has been beat to death…That said, why would you want to use a junk product like a Pertronix? Failure rates are over 50%. I suggest using a Ford Dura-Spark II (blue box) set up. Its OEM, and dead nuts reliable.
Run the duraspark in my 68 1/2 Ford coil ,NPD sells the wiring Best Napa Duraspark box and a distributor from a wrecking yard .Auto meter tach works and has a MSD rev limiter wired in .It works very well .
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I don't like the Petronix but have had one in a car for 14 years and never a problem though it does interfere with the tach.
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That's the other reason I was asking, I guess I should have looked up previous threads about it. I have never ran a conversion I always ran an aftermarket distributor or the stock Ford ones in my cars. A customer ask me about installing one in his car. I guess I will look in to it a little closer so I can give him the right advice. Thanks Roy
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I am planning on installing the Pertronix module in the stock CJ Distributor, will that interfere with the factory tachometer operation?


I know this topic has been beat to death…That said, why would you want to use a junk product like a Pertronix? Failure rates are over 50%. I suggest using a Ford Dura-Spark II (blue box) set up. Its OEM, and dead nuts reliable.
10
Not if you wire it per the instructions.



I am planning on installing the Pertronix module in the stock CJ Distributor, will that interfere with the factory tachometer operation?
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