You CANNOT adjust points that have pitting!!
Yes you can, and quite accurately with a dwell meter, (which doesn't give a rat's butt about pits and valleys).
Once the points are pitted(usually for being too small of a gap or leaving the key on. They are ruined. But you want the gap to be the minimum.
Filing or sanding the pitted points contacts surface will also not improve them.
I agree sanding ruins them due to embedded particles (sand), but filing does not. Been doing that for 20 years, and I have point sets that are that old and reconditioned at least 10 times.
Matter of fact they will be worse.
Only if sandpaper was used. Otherwise, they work as new (assuming proper adjustment).
Also try to use a multimeter analog with needle to set your points NOT a light because with a test light by the time the light lights up the amount of resistance that that takes will make the timing late. Use the multimeter and set it on the ohms x1000 scale. As soon as the needle jumps it means the coil has fired.
What !!??!?
I double dare you to actually measure the difference in real time. I look forward to your post of this data.
It will be lost in the noise of human reaction time.
Further, to use the ohms scale effectively, you will have to disconnect the coils from the points as they are both connected together at the power source.
See what happens is the points start to open and the condenser is storing that energy(micro farads) and not allowing it to be released to the coil until the gap is at the right amount.
No. You'd best review how this Kettering type system works.
The coils store all their energy when the points are closed (dwell time). When the points open, the coil's primary electromagnetic field collapses generating power in the coil secondary windings to create an arc at the spark gap.
The collapsing primary magnetic field also generates a voltage in the primary winding, too. The condenser absorbs some of this "back EMF" surging back to the opening points, and reduces the current and voltage peaks that develops across the opening points. This reduces the heat generated at the point contacts, which reduces pitting.
The condenser ALSO helps the coil magnetic field to collapse more rapidly, as it makes the current rise faster than a coil does. In capacitors current leads Voltage. With inductors, Voltage leads current during a change in power. (The trade schools teach ELI the ICE man, to help remember how these things work.)