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1974 Nova Custom LM7 Swap - Speed Density Question

This is a discussion on 1974 Nova Custom LM7 Swap - Speed Density Question within the LSx Retrofit and Swap forums, part of the LSx Technical Help Section category; I bought it with a Swap already done (kind of). The person I bought it from didn't know much as ...

  1. #1
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    Gray
    1974 Nova Custom

    Question 1974 Nova Custom LM7 Swap - Speed Density Question

    I bought it with a Swap already done (kind of). The person I bought it from didn't know much as he bought it from someone who lost her husband and she didn't know either. So as I go along and learn both classic car basics I am also learning about LS swaps (I know it's an LM7). I can assume this person did quite a bit to the engine since it has a nice Holley Pan, Cam kit, etc... but I just don't know everything he did. First thing I need to figure out is the IAT sensor (Missing) and the MAF sensor (Missing). I am starting to wonder if it might have been deleted and converted to speed density. How would I check for that?


    Attachment 27214
    Attachment 27215
    Attachment 27216


    Chevrolet Nova Custom 2dr Coupe Information
    • Year: 1974
    • Model: Custom 2dr Coupe
    • Engine: 5.3L Vortec LM7 with a Stage 3 Cam Kit (out of a 2002 Suburban)
    • Body/Exterior: Stock but solid
    • Front End: Stock for now
    • Transmission: 4L60
    • Rear End: 3.73:1
    • Exhaust: Dual custom
    • Wheels/Tires: 205/60R15 fronts 235/65R15 rears on American Racing AR61 Outlaw Rims for now (not pictured)
    • Interior: all stock cloth but I have plans to upgrade to custom leather
    • Electrical: all stock except the LS Harness
    Last edited by Brians74Nova; 09-24-2021 at 07:46 AM.

  2. #2
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    Gray
    1974 Nova Custom

    UPDATE I finally found where they hid the damn plug for the MAF/IAT They had it hidden inside the fender.

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