before u go any further turbo-charging any engine make sure your rotating assembly is doing ok - no blowing smoke oil problems etc weak rings weak bearings will hold u back from going any further the stock sleeves will hold more than u can handle probably 300+hp its the rods that u bend break or wat-so-ever
FPR
Stronger fuel pump
and a good clutch
is what you should take into consideration Firstly~! hope that helps!
make sure you get the boost cut setup in ur ecu to 9psi to stay safe from going over boost if its stock mapsensor