Your best bet is to crank the pulley to get the chain to line back with the factory markings. Note that it has to line up with all of them or else you need to mark them to make sure you get it back in the same position. There is good info in the DIY on this.
DIY: 370z Oil Galley
Good move on the EPS kit. It's the only one I haven't heard of people having issues with.