You'll need to cut the fork so that, with the compression cap installed, you have the normal 3mm of clearance between it and the top of the stem.
The torque value of the star/compression nut is: 35-52in/lbs I seem to remember calling Giant about that one.
The torque value of the star/compression nut is: 35-52in/lbs I seem to remember calling Giant about that one.