Hondata

I have a 99 ex civic and I just took a stock b16a and put edelbrock intake manifold, blox throttle body, rc750 injectors, aem fuel rail, aem adjustable fuel pressure regulator, walbro 255 fuel pump, hondata s300 in p28 ecu, blox exhaust manifold, turbonetics t04b, tial wastegate, intercooler,piping and rfl bov on. I set my injectors at 750 under greddy b16 turbo calibration and it started and idles fine. Revs up hits boost blows off no problem. I went up the street and it stumbled really bad CEL on immediately. Hits boost at about 6000 after stumbling but not really powerful. Is my calibration wrongor map sensor setting or any ideas would help thanks. Ran fine no codes before of course.

wide band O2 hooked up?
I would recommend not going above 6krpm in boost with out a tune,

stock map only up to maybe 11psi,

It needs to be properly tuned on the dyno. You should never attempt boosting on a base map.