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Thread: 331 and 8 lbs of boost- what size injectors?

  1. #1
    Junior SCH Member
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    Jul 2004
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    331 and 8 lbs of boost- what size injectors?

    I'm dropping a 331 in during the cold months and have a NOVI 1000 with 8lbs of boost. What size injectors are you guys running? I have an Edelbrock Performer upper/lower, GT40 heads, F303 cam and full exhaust. Thanks for any advise.

  2. #2
    SCH Moderator 5150 LX's Avatar
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    Dec 2002
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    Abilene, TX
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    4,098
    I was running 42's with mine @ about 11-12#'s, ran outta injector up top.....

    Any idea what kinda RWHP you running???
    Quote Originally Posted by Kato Engineering
    you just like the metric system because when you talk about your organs length, a three digit number seems to you longer than a one digit number....
    Dart Block 331 and No Power Adder, currently in pieces...... :weird:

    Used to run 6.90 @ 100.4 mph in the 1/8th

  3. #3
    Junior SCH Member
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    Ya, I was thinking 42#'s but wanted some feedback. I have NO idea what kind of power to expect but can't wait to find out. I have had a LOT of head gasket problems with previous motors and I don't want any problems with this one.

  4. #4
    Senior SCH Member frdfandc's Avatar
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    May 2003
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    Elkton,MD
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    Go with at least 50's. That way you have some room to grow if you step up to a larger blower.

    I will be using a 331 with a Novi 2k renegade kit on it. I will be utilizing 72# injectors to feed the beast.

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