Just done a top end rebuild and purchased a new turbo - T34 with .63 exh. I have also upgraded to greens with a 3 bar -31 etc and added group a head gasket, cometic gaskets throughout, new oil pump, group A fuel pump, new filter and sec monitor to keep an eye on things

My question is how much boost can i run bearing in mind im still running standard compression. Running 21 at the moment but would like to know whats the safe limit

CheeRS