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Thread: MSD 7AL-2 or AL-3

  1. #1
    Senior Member MASTER BUILDER
    Join Date
    Aug 2007
    Location
    Iowa - USA
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    218

    MSD 7AL-2 or AL-3

    I have a blown BBC that is getting close to completion. I have a 7AL-2 ignition. MSD Tech says I need a AL-3. Any opinions of the above. Thanks.

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    Mar 2003
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    Ohio
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    936
    Nothing but problems with the al3. I had a brand new one out of the box go bad. I had to carry a spare and it too was bad out of the box. If you have to update, I would seriously look to move to the Digital stuff.
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  3. #3
    Senior Member MASTER BUILDER
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    Aug 2007
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    Like a digital-7?

  4. #4
    Senior Member MASTER BUILDER
    Join Date
    Aug 2007
    Location
    Iowa - USA
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    Like a digital-7? I have a digital-6, will that work.

  5. #5
    Senior Member DYNO OPERATOR
    Join Date
    Aug 2007
    Location
    Lost Creek, WV
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    533
    Alot depends on how much boost you are going to run. If this is a race engine and going to make more than 12 lbs of boost, then you might consider an MSD 8 or even a MAG. This is what MSD told me when is was messing with blower motors.

    TS1955

  6. #6

    fuel

    running gas or alcohol?

  7. Racing Junk


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