1965 valiant 225 timing issues.

Hey guys long time lurker but never post. I need a little help. My daughters 65 valiant is hard to start and shakes. So Im going through the motions. Rebuilt the carb several times thinking it must have a blockage but at this point no way. So attacking ignition. Had old points so I installed electronic ignition and new hot coil. Trying to check timing is very difficult and makes me want to throw things. The timing tab is on the drivers side under the a/c compressor. Very hard for me to see. It seems the mark is to the left of the 0. The distributor is turned all the ways ccw. If I turn it clockwise I lose the mark. I see people talking about 12-16 degrees but I dont know how to figure out where that is.

HELP!