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Thread: Xflow twin 40 jetting advice

  1. #1
    Spanner Monkey

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    Xflow twin 40 jetting advice

    Hi 1700 xflow 1300 pistons 224 cam stage 4 race head i need a rough guide on jets to get reasonable running before rolling rd.
    Cheers for any help

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    Pole Position Decade Plus User
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    Re: Xflow twin 40 jetting advice

    A stage 4 race head with a 224 cam? Odd combo.
    What is the spec of your stage 4 head?
    Webers or Dell'Ortos ?

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    Spanner Monkey

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    Re: Xflow twin 40 jetting advice

    Lol meant 244 cam. Twin 40 webers
    Cheers

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    Re: Xflow twin 40 jetting advice

    Twin 40's will hold the engine back at high revs but here is a starting point for jetting.
    Mains 140, air 170, tube F11, idle 50F6.

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