At 17 to 21psi boost , I've seen cars with 9:1 cr hit about 350whp with a decent turbo on da dyno. This is awd, but same difference.

Its gonna cost you around $500 to $600 for internals (2G 4G63 pistons, 1G turbo rods and some gaskets and rings/bearings).

Forged pistons are like $500. rods; around the same or more.

$500 for machine shop to rebuild the block.

Possibly $500 to $1000 for a shop to take it out and throw it back in after the blocks rebuilt. (unless you plan to do it yourself).

This is also minus all the other costs for manifold, oil and fuel lines, turbo, exhaust yada yada...

also, youre gonna want a datalogger to check for knock and other crap.