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302 SBF running lean

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  • 302 SBF running lean

    I have a 302 ford with a "moderate" cam (I do not know the exact cam specs). I am currently running the 5002 Map. My problem is when I choose the "mild" cam option in the setup wizard, it runs too lean 14.7 AFR. That AFR reading stays the same no matter what I am doing with the throttle (idling, cruising, WOT). When I choose the "race" cam, the AFR is 10.2 which is too rich. I have adjusted the fuel modifiers, but it doesn't make enough of a change. Any help would be greatly appreciated! =)

  • #2
    You can use the vacuum reading at idle to help you select weather to use the mild or race map. If map 5002 in “mild” configuration is to lean, the next richer map in mild configuration is 5008. Give it a shot and see what happens.

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    • #3
      most of the gents hear will tell you with out cam specks use the vacuum reading to chose a map as jm7330 said.

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      • #4
        Is there a way to choose specific maps? Or is it only determined by the cam you choose?

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        • #5
          Originally posted by Racer X View Post
          Is there a way to choose specific maps? Or is it only determined by the cam you choose?
          Like said above, you can use vacuum idle, some actually prefer it. If you look at the map matrix, each map has a specific vacuum range. What is you idle vacuum?

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          • #6
            Where can I view the map matrix?

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            • #7
              in the back of the installation manual and in the tuning manual

              Install instructions for "classic" V8 engines with either 4150 4 bbl or 90mm XT throttle bodies: https://misc.edelbrock.com/forum/63-35760.pdf
              Install instructions for LS kits: https://misc.edelbrock.com/forum/63-35763.pdf
              Install instructions for LS ECU & harness kits: https://misc.edelbrock.com/forum/63-35711.pdf
              Quick Start Guide & E-Tuner User's Manual: https://misc.edelbrock.com/forum/63-35761.pdf
              Last edited by fleet man; 08-19-2020, 02:40 PM.

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              • #8
                Originally posted by Racer X View Post
                Where can I view the map matrix?
                Check the 2nd to Last page in the Installation Instructions.

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