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  1. #1

    Join Date
    Sep 2006
    Houston Texas

    Jet and pop off recommendations for 97 xp 787

    Would anyone have base line for both low and high speed jets, and pop off springs for 97 800 xp? Only mods will be high compression head, aftermarket F/A's, and skat trak impeller.

  2. #2
    Non accel pump carbs, right? If so I'd keep the 142.5's up top but open the HS needles half a turn. Take the lows to 80. If a more restrictive FA then 75's will work fine.

  3. #3

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