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401 Spark Plug Recommedation
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Thread: 401 Spark Plug Recommedation

  1. #1

    Join Date
    Feb 2006
    Location
    CT USA
    Posts
    6

    401 Spark Plug Recommedation

    Looking for recommendations on spark plugs

    Newly built AMC 401, MSD ignition/wires, forged pistons, bilet rockers, cam, over head oiler, balanced, edlebrock carb and manifold.. putting off 400hp

    Was told Autolite AR52 racing is a good plug... any ideas??
    71 J4000 w/ AMC 401

  2. #2
    Thank you from BT ULTRA TECH MASTER!!!
    Join Date
    Feb 2005
    Location
    East Bethel Mn
    Posts
    1,260
    I use ngk v power gr7's in my 390
    he who dies with the most toys wins!!!
    69' amx 390 4 speed best et 11.85 @ 116mph
    VOTEBUTTON

  3. #3
    Thank you from BT Tech Master Bulltear Forum
    Join Date
    Jan 2003
    Location
    In a Half Dark world now a days
    Posts
    1,437
    what cr are you running ? I am running autolite 63 or 64 in mine right now I would rather foul pluges then burn a piston

    best ever 11.669 @ 112.33 mph in 1/4 mile on 33 x 10.50 slicks and 4" lift / 7.358 @ 93.03 mph in the 1/8 mile

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