plug gap
Thread Starter
|
Senior Member
Joined: Oct 2008
Posts: 679
Likes: 0
From: mc calla alabama
plug gap
Just picked up a set of the motorcraft sp-534 plugs and the tech said they were pregapped but what is everyone gapping theirs at? .30? Need answers pretty quick as I'm fixing to change them.
Senior Member
Joined: Sep 2002
Posts: 2,165
Likes: 3
From: Cabot, AR
Mine seem to run best at .035". I had them down to .032"ish for a while and my mileage seemed to drop a little bit. The factory gap at ~50k was between.033"-.040". Changing them smoothed the idle out considerably.
Senior Member
Joined: Sep 2008
Posts: 3,480
Likes: 6
From: San Angelo, TX
Most people that recommend gaping them to .030 on a Eb are running a tune.. If you are stock i would recommend the .035