310 what spark plug
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  1. #1
    Join Date
    Apr 2008
    Location
    Virginia
    Posts
    220

    Default 310 what spark plug

    i have an esr 310 with a cool head and a race gas dome what is the best plug to run in it


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  3. #2
    Join Date
    Mar 2008
    Location
    va
    Posts
    123

    Default

    ..........br9es

  4. #3

    Default

    br9eix (iriduim)

  5. #4
    Join Date
    May 2006
    Location
    kentucky
    Posts
    1,343

    Default

    br8es should work

  6. #5

    Default

    stay in the stock heat range