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Ignition Timing help 427 Tri-Power 400HP

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Old 10-17-2015, 07:03 PM
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70stingray14
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Default Ignition Timing help 427 Tri-Power 400HP

I just upgraded my Ignition system with the following MSD products.

Distributor: 8572 with vacuum advance
Ignition: 6425
Coil: 8202
Spark Plug Wire Set:35379

What is the difference with running vacuum advance vs mechanical?

Also, what timing should I be looking at?

Thank you,
Carlos
Old 10-17-2015, 07:26 PM
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Big2Bird
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