4g63t evo evo5 evolution psi

Is running 1.2bar on my Evo 5 (155,000km in every good nick, no issues leaks, all parts up to date and quality oils etc.)okay? Mods : Sinco aftermarket exhaust manifold Tial (8psi spring, thinks its 32mm) Vband Wastegate (plumbed in) Full turbo back 3inch exhaust, cat-less HKS SSQV Bov Steel...