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Thread: Whats a good spark plug?

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  1. #1
    Join Date
    Nov 2009
    Location
    san antonio tx
    Posts
    331
    Quote Originally Posted by STUNNA View Post
    ac delco iridiums
    +1

    04 ecsb 5.3- perfectly tuned by Nelson perfomance, Pacesetter longtubes, 100 shot n2o from NX, cold air intake.
    03 rcsb charbroiled (race truck eventually)

  2. #2
    Join Date
    May 2008
    Location
    San Antonio/Laredo
    Posts
    364
    i prefer NGK TR55IX or if not AC Delco Iridiums

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