people do 500whp all day on stock internals, but they wont last that long. You will need to run a .50 trim or higher turbo. 28psi on meth/water mix with race gas, every possible bolt on, 750cc injectors big fuel rail, returnline, upgraded fuel pump. Mine was acheived on a SAFC neo, but its probably better to go stand alone like diablo sport, SCT, or AEM EMS. You need a DCR oil system upgrade and remove the balance shafts