Custom distributor curving.

Ok guys sorry this is late but I was trying to document some spring rates
on the advance. The Mr. Gasket curve weights had all my advance in by
1000 rpm, not exactly what they advertised.

Again this is for a small block points distributor.

First off, pull your disty and get a clean workbench. Take off the cap and
rotor and the first picture is what you see. Next remove the 4 screws on
the outside. Two hold the vac advance and the other two hold the guts
to the housing. You can twist the insides out a little to free the vac
advance pin so it will drop out the bottom of the rotating plates and
slide her out of the disty.