1. roccodart440

    roccodart440 Well-Known Member

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    I currently run an MSD Digital 6 and have for 20 years. There is nothing wrong with it, but my father is building a new car and he needs an ignition. He'll pay me half the retail cost of mine and it would allow me to upgrade to a 7 series for a very low cost.

    Wondering for those of you who have run both series, or have run a 7 series if you think it is a worthwhile upgrade.

    I'm not at all interested in opinions on MSD products. So if you're an MSD hater or think a chrome box is better, move on by Tex.
     
    Last edited: Oct 13, 2021
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    • doug 371

      doug 371 Well-Known Member

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      lol...still running a 6al so no help here...
       
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      • Les Gibson

        Les Gibson FABO Gold Member FABO Gold Member

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        I run a MSD 7AL-2. I like the RPM chip feature.
         
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        • Rat Bastid

          Rat Bastid .004 light

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          Yes, you need to upgrade. You can’t have too much ignition. Once you go to a 7 you will never use a 6 again.
           
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          • 70aarcuda

            70aarcuda Master Hoader of SBM FABO Gold Member

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            I have run a msd 6al and msd 7al-3 in the same car....no difference in performance.....in fact I went back to the 6al in our 71 Duster
             
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            • roccodart440

              roccodart440 Well-Known Member

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              Looking at the 7AL-3

              I like the idea of having a top end limiter, one for burnout and a two step.

              I also like that it comes in black anodized

              MSD 7330 MSD 7AL-3 Ignition Control
               
            • TomMoparMan

              TomMoparMan Well-Known Member

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              I ran the 6al for years when I raised the compression developed a miss went to 7al problem fixed. Needed a stronger spark for more pressure. Changed compression from 12.5 to1 to 14
               
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