it will handle as much boost as your timing and fueling allows, which with stock management isnt much.
there is no direct bolt on turbo manifold. Xiogary might have made some, but the are NLA.

Read up on turbos and fueling and how everything is related. For the cost of a turbo kit, that is done right, with the proper engine management, I imagine you could stick a 1.4t out of a cruze in there.