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Thread: which is better?

  1. 01-23-2005, 09:45 AM #1
    youngdawg
    youngdawg is offline Member
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    Jul 2004
    Location
    Central California
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    Question which is better?

    Wondering which will give better performance gains and where in powerband...PowerBomb Header or Porting the head?
    I ride trails and dunes.


    03 400 EX
    bored to 440
    11:2 to1 comp Ross Racing piston
    stage 1 cam
    White Bros R4 muffler
    no lid
    Big Gun Rev box
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  2. 01-23-2005, 09:29 PM #2
    Derag2
    Derag2 is offline Senior Member
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    I would say you would have to do both to get good benefit from either one and both will move the power band up in the highwer RPMS.
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  3. 01-23-2005, 09:34 PM #3
    roostin_dale
    roostin_dale is offline Senior Member
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    I would say get the header. You will feel alot of power gain...because your running a stock header on a 440????
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