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So, after the installation, I spent the best part of my afternoon trying to get the IGNITOR to work on my '66 GT 289 4V. Using my research from this site, I took the time to get 12 volts via the ignition switch.....I spliced into my feed from last year's installation of the holley carb with electric choke. (Was that where I went wrong?)

In about 30 tries at cranking, it started only once and ran very roughly. I rechecked everything several times and finally connected the red Petronix wire to the BATT side of the coil. Voila! Started first try and every time after.
I haven't test driven it ( thunderstorms ) to see how it performs , but I'm confused.

So, if you survey respondents have had no problems with your coil hookup, I'll leave it alone. Thanks in advance.
 

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Mine has worked fine on the 428 connected to the coil.

[color:blue]68 GT500[color:blue]
[color:green]68 1/2 CJ Coupe</font color=green>

[color:red]MCA# 18519[color:red]
 

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I have not had a problem coil side

Paul
1965 Mustang 2+2
1989 Mustang GT Convertible
MCA #27261
MCA certified judge for 65's and late models
 

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That's quite wierd. I suspect the choke is pulling the voltage down below what the Petronix needs, but that really doesn't make much sense. Are you sure your splice was good? What voltage did you have at that lead when the key was in ON position?

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No problem with coil hook-up. Mine's been in for about 3 years now.

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[color:green] '67 cpe, daily driver </font color=green>
 

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I think it depends on whether you are getting enough voltage to the Pertronix for it to work, a coil can work on less than 12V and the resistive wire used in plenty of Mustangs shows this, the Pertronix module however will not work below a certain voltage (can't remember exactly how much, something like 8-9V), I bet that is why yours worked when the pertronix module got 12V from the batery and not when getting voltage from the +ve coil terminal (you probably have a resistive wire or ballast resistor in the circuit somehere - in a 69 it is a resistive wire). What I did in my Pertronix days was run a wire that was spliced in to the resistive wire at the ignition switch directly out to the Pertronix module (ie it wasn't hooked up to the coil +ve terminal but closer to the 12V ignition source) and left the in place resistive wire powering the coil only (to the +ve terminal).

69 Sportsroof, 351C, 4spd toploader, Restomod BOSS 429 clone - the one and only (?) 1969 BOSS 351

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Both my running Mustangs have the Pertronix hooked up to the coil with no problems on either.

If you always do what you've always done,
You'll always get what you've always got

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mine didnt work at the coil, had to tap into the ignition switch.

[color:blue]'65 wimbledon white original coupe I6
'99 silver convertible V6

Check out Mike & Jackie's '65 Mustang </font color=blue>

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Coil. Works fine.

Doug-"Whether you think you can or think you cannot.....you're right!!" INDY-USA. GT/CS w/289-2v,PDB,A/C,PS,candyapple red,black top and interior,pertronix,chromeSS Wheels w/ GT centers, 215x14 BFG radial T/A's 3.55:1 open and KYB's
 
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Used to run it to the coil. The motor seemed to lose power after it was totally warmed up. Switched over to 12V at ignition, doesn't lose power anymore. Runs better!
 
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