Hey Ultraman, use a real name.
Anyway, what gear are you in when this happens? And have you done the fuel pump rewire yet? I'm running a 14B on my 2G and with the rewire I'd nail fuel cut at 5400rpm in third at 15psi. Also with the T-25 17psi is hair-dryer mode so you should turn the boost down a bit, your knock sums are probably pretty high. Start with turning down the boost (try 15psi) and doing the fuel pump rewire. If it happens in every gear though, fuel cut isn't your problem