It's not about boost numbers...your not getting the concept.
My blue car at WOT makes about 10-11psi. At the shift. No intercooler, no methanol, pump gas, Headers, Ported Heads, L32 valves, P&P'd LIM/Blower, LS1 TB setup...still on a GenIII with 42.5lb injectors and on a 3.0"