I hate to say it but do you have any idea what you’re doing? You coulda already fucked up your motor when you just wanted to run it with the Z32 MAF and a new turbo without any type of fuel controller. And you want to get to 350-400rwhp for “cheap”? Sigh, another typical kid who wants the usual “300whp” but seems to have done no research what so ever.
But if you want that much power, I’m pretty sure that you’d need 740cc injectors + a way of controlling the fuel and Z32 MAF. I wouldn’t go with an SAFC.