Most people recomend that you have some sort of intake and full exhaust before you mess with turning up the boost. i would recomend getting a air/fuel ratio gauge to make sure you dont run lean with more boost. You might also want a egt gauge to monitor everything.
1989 SHO Taurus- daily driver
"haha he drives a taurus, ill kill him" word of an uneducated ricer
1985 Mercury Cougar
Soon to be freshen'd up with a 5.0 from a lsc