New fullrace turbo kit running ruff.

[l8nightjay]

Ok so here's the basics before the keyboard cowboys run crazy, really ne need some help.
New installed full race turbo kit running a gt3071r twin scroll turbo kit, with nistune, and all the supporting mods. I did have a vacuum leak that i found and fixed, but still running ruff. Runs great for about we 10 mins, then feels like she's cutting off/hiccuping around 3000 rpm. My nistune is dialed in for a gt 2871r turbo with same mods. I don't know if my timing is off, fuel pressure regulator is running lean/rich, or the tune is fucked, but this is my daily so I need to figure it out to get to work, and don't have 700 bucks for a dyno atm. What should I do? My plugs are colder, got a giant fuel pump, rocking small 770 cc injectors, my Hugo wide band is being a bitch so that's no help if I'm rich out lean. Sorry but going crazy over here in Oregon trying to drive my toy. Any help would be awesome!!!