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425 nailhead open headers on the street

Discussion in 'The Hokey Ass Message Board' started by ilikeflatblack, Feb 6, 2013.

  1. ilikeflatblack
    Joined: Nov 27, 2006
    Posts: 139

    from HASLET, TX

    any thoughts on back pressure. i have baffles in my lake headers. other than removing them for the track. would it do damage to the valves if driven on the street for a week or two, hot rodding around town from light to light

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    Last edited: Feb 6, 2013
  2. Warping valves because of open exhaust is an old " wives tale" Don't.worry about it.
  3. No , you'll put your eye out. Lol scare women and children too.

    Baffles and open will/should require different tune/ jets.
    Usually its fatter for more open. Just don't go lean
  4. Heo2
    Joined: Aug 9, 2011
    Posts: 661


    It makes the muffler bearing run dry
    and give the gonkulator to low preassure

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