where is the timing mark on the crankshaft pully?

it will be on the outer edge of the pully and will just be a small notch/grove the easiest way to find it is to put a socket on the nut in the center and slowly turn it till you find it. its also handy to put some tip ex in the grove to find it easier later on http://www.automd.com/265/how-to-replace-a-distributor/ check the third picture down the page