Breaker Arm Spring Tension
WARNING: This page is about a different car, the 1983 Volkswagen Vanagon. However, it is still accessible from the selected car via links, so may be relevant.
To check spring tension, place hook end of spring scale as close as possible to the movable breaker point. Pull scale at a right angle (90 degrees) to the movable arm, and note reading just as points begin to open.