On the distributor shaft, there is a painted mark, aline this
with the two holes in the distributor shaft, located just below the
gear. Mark the outside of the distributor where the rotor is
pointed. On the inside of the distributor, you will find two cast
marks, one stamped with an 8 and the other with a 6. For V-8's
rotate the rotor until it is aligned with the 8. Now mark this
location on the outside of the distributor. They should be about 45
degrees apart. The first mark is the direction the rotor should be
pointing when you begin to install the distributor. When the
distributor is fully seated, the rotor should be pointed to the 8
and the second mark. Snug the distributor into place and place the
distributor cap on and tighten the screws for the cap. The plug
wire post should be perpendicular to the center line of the
engine.