I'm staying stock till I have a nice working setup then I shall go forged.... I have aimed for 400 but at 20psi on a gt35 with unitronic does inbetween 350 and 400 so what ever it comes out at should be fine on stock
You might be better off with an ED30 lump (BYD) or S3 as it has bigger wrist pins, 4 bolt mains and stronger rods / pistons than the AXX. 20 psi from a GT35 shoves a hell of a lot more air in than 20 psi of K03. Pressure is one thing, but pressure with a lot more flow is another. Think 20psi garden hose vs 20psi fire truck hose. One makes you wet, the other knocks you off your feet.
Not knocking your build, just putting that out there :)
Nowt wrong with high hp FWD either, I had a Corrado VR6 turbo which was insanely fast and good fun.
Standard management can handle it by the way. Not many affordable standalones support direct injection, let alone variable fuel pump control etc etc.