5.2 Magnum Distributor Question

you are overthinking. It cannot fire #1 while pointing at #8.
Sorry, I guess I should have worded that better. The original cap has (1) molded into it indicating it is the #1 post, but when the rotor is lined up with the post, it is pointing at #8 cylinder physically (making an invisible line). I'm used to chevies where #1 is physically lined up with #1 when in firing position.