The patient is my fathers 07 F-350 6.0 90k, blocked off EGR, no scoop up pipe, 4" no cat exhaust, and 40hp PHP ficm tune. VXCF4
A little history first. About 10k ago it lost the injector tip on #5, after bore scoping the cyl we figured the damage to the piston wasn't that bad(its wasn't great...