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New engine, new post

Discussion in 'Dakota, 1998-2013 Durango and Aspen' started by DaveWR2, Jun 6, 2016.

  1. DaveWR2

    DaveWR2 New Member

    Joined:
    May 31, 2016
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    So the new engine yet to be finished goes like this...
    239 (3.9) pre-magnum, dual-point efi with DRBII for a 90 Dakota.
    Heads were ported & polished, radius valve job, stainless valves, bronze guides, etc.
    Short block will receive BP & balance with honing plate, possibly 9.5:1 CR, etc.
    Topped off with Mopar Performance intake and Magnum exhaust manifolds with three inch pipe.
    So I call my cam guy saying I want all this to work together and he asks what can be done with the ECM. He was concerned with the vacuum needed. I surmise the constant of butterfly bore size might be a hang up too.
    So my question to the board is-can these be tweaked, is there anybody out there doing it and can yours truly do it with the DRBII unit
    Thanks!
     
  2. GLHS60

    GLHS60 Well-Known Member

    Joined:
    Jun 23, 2008
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    DaveWR2 likes this.

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