bogging in boost

[Pimpin Dsmstyle]

Well i got my lines adjusted properly, and when i can come up with some money i will get a boost guage so i can see where my boost is exactly at. However, every once in a while, when i go past 5k hard ( WOT) it occassionally does this "bogging" It could be a bad misfire.. it is quite scary but its not how you guys describe fuel cut ( mouth in the wheel kinda shit) . Any ideas? If it is misfire, is that my timing or what?