The easiest way to deal with getting the trigger points adjusted is to remove the distributor to the work bench. (Don’t loosen the pinch bolt that secures the distributor timing but rather remove the two 12mm? bolts that hold the distributor flange down to the engine block. Note there are three pins in the trigger points connector. There are two sets of points, each one triggers two injectors. The center pin is common to both sets of pints. Connect an ohm meter or continuity tester to the center pin and one of the side pins. Spinning the rotor should show that the particular contact point in open approx 180 degrees and closed 180 deg. The exact dwell is not critical. Do the same test for the opposite set of points. Make note of each, remove the trigger points, from the distributor, and carefully tweak the static side of each set of points to either increase or decrease the dwell. I can tell you that, if anything, the points have closed up over time due to the lobe followers wearing down. Also don’t be afraid to clean up the points with a few swipes with fine sandpaper. Trigger point dwell adjustment is trial and error. Once you get both of them to show a dwell of anything “near” 180 deg that should be fine. Put it back together.