IN FACT, Jim, the cam marks are "in a sense" 180 out. When you install a Mopar, Chivvy, and many other cams "by the book" IE cam sprocket mark at 6 o'clock, and crank mark at 12 o'clock, you have in reality set the engine to fire on no6
That is, if you don't rotate the engine before you install the distributor, in order to get the thing to run, you would point the rotor to fire on no6
