Low side ports are always on the suction side of the the compressor
[ between evap and comp]
For easy ID, this line is also the larger line ..

On comps. with the ports right on the comp [ Old Yorks,etc] , the low side port will still be where the larger line enters comp port

Here is one from a previous post yesterday.. little later model, but will give you the approx. idea

http://www.peachparts.com/shopforum/attachment.php?attachmentid=27059