New plugs this weekend. What gap??
I am thinking .25 on these new sp534's. Running a 5star 91 tow tune and seeing almost 19lbs of boost settling down to about 17.5. Most other turbo forums regardless of brand recommend .25-.28 when running that kind of boost in a higher compression motor like the ecoboost. Anything above that results in spark blow out!!
2013 SCREW 3.5Ecoboost Lariat,3.31 gears, chrome package,20's,5 Star tuned.