hello peeps im new to the pf sceen and would first like to say hello secondly i have just brought my first s1 after owning a few frst my s1 is standard apart from exhaust and air filter and boosting at 8psi i have a kent cam and vernier pulley to put in it and a grs front mount intercooler and the engine had a rebuild about 20000 miles ago what sort of boost levels will i be able to run for reliability