If that SSD is replacing the system disk then the best thing would be to create an image of the current drive and then with a bootable restore media, restore the disk image(s) to the new SSD. Changing volume sizes as appropriate.
If that SSD is replacing the system disk then the best thing would be to create an image of the current drive and then with a bootable restore media, restore the disk image(s) to the new SSD. Changing volume sizes as appropriate.