injector balance rate issue

mid July i sold my 03 and bought a 06 with only 7000 miles on the current performance setup (bone stock before). all the work was done in April at a shop in north Georgia. the parts are 10mm h&s stroker, industrial injection long life 100s, htt66, fass, studded, intercooler/intake, and built auto. 2 weeks ago i noticed my oil was high and changed it, it made 2 gallons. so i watched it over the next few days and about 4-5 days the oil raised about 3/8" on the dip stick. took the valve cover off checked for leaks above the head, even unplugged the fca and everything checked okay. finally checked my balance rates and injectors 1-5 checked out at around .1-4mm3 and number 6 was 14.1ish mm3. the truck ran great and only had hard starts a few times, so i had industrial overnight me a injector monday and installed it tuesday. the rear hold down bolt on the injector was hand tight and also the intake rocker bridge was upside the injector body rubbing it. i have no idea why it was doing so, so once i put it back together i started the truck multiple times and let it idle and watched to make sure something wasnt wrong to cause that, but nothing.. trucks ran great so for curiosity i checked balance rates this evening and im reading the same numbers again...

so what could have cause the same readings after a new injector and also the bridge to be off and rubbing the injector body?