i made 400whp and 346tq with a stock bottem end, megan mainfoild, gt2871r turbo on 18psi, 550cc inj, hks 264 cams, and spitfire coil packs, on a martin rom tune, you dont believe it call him all thats has changed now and is not losing power its only going up........
picture when it was getting tuned and made those numbers

picture of the turbo that made that power

the way the engine bay looked when it made that power


there you have it nothing to hide if you dont think my numbers are honest then put up and run it......