spark plugs

[35thstang99]

hey im going to get new spark plugs..i want toget a lil bigger gap but does that help at all for gains?..what kind of plugs should iget?

 

[Kilgore Trout]

Motorcraft AGSF-32C

Here's some installation instructions with pics:
http://www.bullittarchive.com/html/modules/articles/article.php?id=83

 

[Kilgore Trout]

Indexing spark plugs:
http://www.bullittarchive.com/html/modules/articles/article.php?id=30

 

[Kilgore Trout]

Reading spark plugs:
http://www.bullittarchive.com/html/modules/articles/article.php?id=42

 

[Dark Knight GT]

Dont expect a seat of the pants gain with just plugs. My advice, go with a step or two colder than stock copper plugs from a good company like motorcraft or NGK, gap them at .054, use some spark plug anti-seize, be sure not to over-tighten and call it a day.

 

[Kilgore Trout]

Nope, use the stock heat range.

 

[98blackstallion]

what should the plug gap be on a 98 GT?

 

[5spdBlack]

your stock spark plugs are fine...the only thing you will gain is better quality plugs. You will gain 0 yes 0 hp/tq. Personally i think they are a waste of money unless you have some serious engine work done like cams or s/c