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Old 05-16-2017, 09:22 PM   #1
MonsterBilly
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Default petronix on my 302

who here uses the petronix dizzy. I removed a hei and went to a petronix back in dec but my car has not run well since. i replaced it for hood clearance.
i noticed the petronix cap fits really loose too. i installed the d130700 with ignitor 2 module. I have a mostly stock 302 with h268 cam and headers.... i am running 12* initial timing but it seems that there is over 35* of advance so at about 3500 rpms i am seeing about 45 plus degrees of advance.

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Old 05-16-2017, 09:35 PM   #2
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45+ is good if its running vac.

12 is good initial

make sure you have vac disconnected you should see 32 to 35 total all in at 3500 no vac (thats a decent curve. I run bit steeper im like 34 total no vac all in at 2500 and 10deg vac advance so its 44 with vac all in at 2500)
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Old 05-16-2017, 09:51 PM   #3
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Have you bypassed the stock ignition resistor wire?

The pink wire coming out of the ignition switch to feed your coil is a resistor that is designed to drop voltage to the coil + to ~8V to keep from burning out points. In order to make sure your ignition unit is working properly, you need to feed it a full +12V from a different switched source.

When you do this, you also need to make sure you have an internally resisted coil designed to run on +12V without melting.
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Old 05-16-2017, 10:42 PM   #4
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i have it running off of a 12v connected to the ignition switch, and a flame thrower coil
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Old 05-16-2017, 10:42 PM   #5
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im also looking for recommendations for spark plug wires.
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Old 05-17-2017, 09:23 AM   #6
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I prefer the make-your-own MSD wires. I have a set of Taylors right now that I'm not a big fan of due to the ultra soft silicone insulation, and I couldn't find a set of Ford Racing wires that were the proper length to run straight over the valve covers.

The MSDs are high quality, durable, and you end up with the size you want. The "universal" plug end angles accommodate us SBF guys without header/manifold clearance issues.
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Old 05-17-2017, 10:15 AM   #7
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yep +1 on the msd wires too.
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