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Old 06-04-2003, 11:45 AM
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Post Mallory YL & Ignitor

Hey freaks!
My engine is a highly modified 351W with a MSD6A ignition box connected to an Accel Supercoil.
Distrubutor is an Mallory YL with mechanical advance.
It has worked great with points but I got tired of setting them and Mallory points are very expensive!
Last week i got tired at the disttributor so I desided to buy a Pertronix Ignitor.
First I checked how it would hook up with the MSD6A and got a wiring diagram from Pertronix.
The installation was really easy and the engine fired right up!
I set the ignition timing and did a testrun.
DISAPOINTED!
The engine didn't deliver the power it use to do with points.
I tryed several different timing from 7 up to 18 degrees with no improvment.
I changed the plugs and ingreased the gap 0.005 but still no improvment.
Final I removed the distributor and checked the shaft play and everything was by factory limits.
What can be wrong? Have anyone got problems instaling Ignitior in a high horsepower engine?
Can the coil be a problem?
Can it easily be checked?

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Old 06-05-2003, 11:40 AM
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I'm in the same boat as you are. I had a Mallory Dual Point "YL" distributor in my 66 Mustang (289) and I removed it and put in a regular original Ford distributor so that I could run the Pertronix module and I noticed a loss of power off the line. Maybe more throughout the power curve, but I couldn't put my finger on it.

I wonder if there is a pattern here.

Good luck, I hope someone with knowledge posts a reply.

Greg.
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Old 06-05-2003, 03:43 PM
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I haven't experienced what you guys have described but I also used to run a Mallory Dual-Point in my mustang. She was getting old and I was having problems with erratic dwell readings. I decided to go with a Mallory Unilite distributor and man could I feel the improvement. I had heard stories of module failures so I checked it out with Mallorys tech help and as per their suggestion installed their power filter (spike suppressor), coil, and made sure I had a resistance power feed to the coil (they can't handle full system voltage). All I can say is with stock diammeter tires on the back and 3.70 gears she tachs out pretty quickly and the Unilite handles the job no problem. If you decide to try something different a new Unilite could be sweet.


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