Best spark plug option 1972 big block - NCRS Discussion Boards

Best spark plug option 1972 big block

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Robert B.
    Expired
    • March 1, 1999
    • 43

    Best spark plug option 1972 big block

    Can anyone advise the best spark plug option for a 1972 big block? The engine is in stock configuration, except the carb is set up as non-ported bypassing emissions devices. Thanks.
  • Duke W.
    Beyond Control Poster
    • January 1, 1993
    • 15610

    #2
    Re: Best spark plug option 1972 big block

    AC heat range "5" or equivalent in another brand in the correct geometry.

    Duke

    Comment

    • Ken C.
      Expired
      • August 31, 2006
      • 120

      #3
      Re: Best spark plug option 1972 big block

      running AC R45T's in my 72BB. For a few weeks had R44T's in car when i tuned it up. Car developed a stumble off idle to about 1300 rpm from a stop. Put the 45's back in and all disappeared.

      Comment

      Working...

      Debug Information

      Searching...Please wait.
      An unexpected error was returned: 'Your submission could not be processed because you have logged in since the previous page was loaded.

      Please push the back button and reload the previous window.'
      An unexpected error was returned: 'Your submission could not be processed because the token has expired.

      Please push the back button and reload the previous window.'
      An internal error has occurred and the module cannot be displayed.
      There are no results that meet this criteria.
      Search Result for "|||"