Find #1 Plug

Wow, now "I'm" confused. Without knowing what kind of dist you have, just think about it like this: The rotor and cap only goes "on" one way. The dist only goes "in" 2 ways (180deg, either way). So at TDC, the rotor is either pointing to #1,or 180deg opposite #1.

I don't see what the relative position of the advance module has to do with it, except depending on what kind of distibutor it might be.