Boost means nothing... its not a measure of power.
Stock injectors can safely push around 350whp without going 90%+ duty cycle.
Any single can run on stock injectors, you just have to adjust the boost level accordingly to the size of the turbo so your not killing your engine.
I'm on a GT40-88 (65mm inducer). I'm on 12psi with 550's, and the SAFC2 correction level is -30%.
So using simple thinking.. at least on my turbo, about 10psi would be the max safe boost limit on stock injectors. Using a smaller turbo would let you run more boost like Van, but you would still be stuck at around no more then 350ish whp.