lol darton sleeves can handle PLENTY of boost aslong as they are fitted correctly. And the b20 crank is very strong. So along with the uprated internals if its mapped well it is a potential monster!!!!!!!
I would be very surprised if that GT35R is even thinking about waking up at 0.7 bar of boost. Start running 1.3 bar or more and it will destroy the front tyres in front of your eyes