To further explain my confusion, the distributors I have been finding on other projects(non-slant) I've read about really have like an arc shaped contact inside the cap, so even if the rotor isn't exactly aligned with the plug wire terminal, it can still send spark. Mine just has a small round contact at each plug wire terminal, so having the rotor contact farther away axially from the coil wire contact when timing gets advanced farther makes the spark have to jump even farther... I'm not a mechanic, so I just don't really see how that will work... though I could be wrong...
I did read an older thread on slant six distributors on the other site and saw where a guy had tried making a rotor with a wide arc shaped contact on the end to allow for more timing advancement, but I got sidetracked and don't think I ever got to the results part of the thread.