RB25 ecu isn't too bad with the 30 but the rb20 ecu freaks out if you make boost.
Hence wire the gate open and use lots of throttle.
Ideally do it on a dyno. Mines been fine though 100,000km's under its belt with wiseco forged pistons that 'slightly' slap on cold start and it still isn't blowing smoke. When I pulled the head off at 70,000km's the bores looked perfectly fine with no scuffing.