Ford Triton V-10 Spark plugs

That's those pesky camshaft phasers. They go bad and the cams wear out. It's just a win win engine all the way around. LOL

Total JUNK. They are so gutless as well.
My current company truck is a 2013 with a 5.0. Its a 6 speed auto and 4x4, not built for speed. But damn it's slow as could be. Not much better than a 4.6/5.4