Any info will be appreciated. I have a 06 f250 with the 6.0. while in park it runs smooth from idle 725-2000 rpm. I can slowly give it throttle and as soon as it gets right at 2000 rpms, it starts missing and misfireing , sounds like one or 2 cylinders. But I can slowly bring the rpms down below 2000rpms and it clears up again. It is not throwing any codes. It also does it on the highway to. It has alot of mods including Warren injectors, bigger turbo, new injector harness, dyno tunes and plenty more. Does anybody have any ideas? Thanks to any info.