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Boost map help!!!

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  • Boost map help!!!

    I just got the 6al programmable box and msd distributor. Not sure the best way to make a map. My total timing is locked out at 33* my map im taking 1.5* of timing out per pound of boost. Starting at 3 pounds. Its breaking up at 5k and running 9-10 on my fast a/f meter. Am I taking to much timing out? That brings me to around 20* total timing at wot. I seen some maps where guys are starting at 5psi then only taking 1-.5* out per pound is that safe to do with 104 octane fuel? Im new to blow thru set up/ tuning and the msd programmable boxes.
    Thanks for any help.

    I have a ford 302 roller engine with a ford motorsport fcam with 1.7 rockers, 650 holley with a carb shop blow thru conversion, eldlebrock performer rpm intake, areomotive fuel system a1000 pump, fuel cell,performance automatic c4 3800 stall, 4:10 gears. 104 octane fuel 93 and 110 mixed 50/50 spark plugs gapped at .024.

  • #2
    Where are you starting the boost curve at 3 or at 18 on the graph?

    How the rotor phasing?

    It should be leading edge of rotor tip to leading edge of the terminal at 34*


    • #3
      I starting pulling boost out at 18.50. It is not rotor phased, how do you do the with the msd billet distributor 8598? My total timing is 33 degrees right now.


      • #4
        with an adjustable rotor p/n 8421


        • #5
          I thought msd distributors were all phased?


          • #6
            You need an adjustable rotor when using electronic timing.

            MSD is the first to make this option available.
            Regards, Gary