Spark plugs

Instro84

USAF retired
Joined
Jul 17, 2005
Need to change plugs what’s a good plug to use I’m assuming Tta don’t use the same as my turbo regal.
 
Stock plugs are plenty good enough. Have a lot of headroom before considering something else. Stick with what is known to work.
ACDelco-R42LTS
 
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