[eclipsed at 3am]

how much psi are you running? and, according to your mods, you have a whole lot of air upgrades, but you dont have any fuel upgrades, and no way to control them (like an safc).

i think it might be fuel cut of some sort, i had the same problem. i had stock injectors and the vaccuum line from the wastegate to the ebc fell off, so whenever i would floor it, it would boost 25+ or so, then the car would surge a split second, and then 25% of the time would shoot a flame out of the back, but mostly just smoke. once i connected that boost controller line, i had to tune it down to 16psi, until my injectors come in. now i can floor it and it goes through the rpms smoothly.

moral of the story is, until you get fuel upgrades, tune your boost lower.