What is the timing mark for a 350 Chevy?

What is the timing mark for a 350 Chevy?
There are actually two of them that you line up with each other. The first is a small pad attached to the timing chain cover near the top on the drivers side. The second is a line on the harmonic balancer. When using a timing light, the line on the balancer will line up with one of the numbered lines on the pad. They are marked at 2 degree increments before and after top dead center. Most 350 Chevy engines have an initial timing of between 4 and 8 degrees before top dead center. Given, timing is to be set with the vacuum advance hose disconnected, and at a specific RPM for each individual engine. When in doubt, look up the specs in the manual.