The problem with factory aluminum Mopar single point units is that "they are so bad", even the "tighter ones" that often, you had to "fudge" the dwell/ gap to come to a "happy medium" EVERYTHING in those units changes with rpm, vacuum, etc. You can only see this clearly on a 'scope.

My recollection--and I haven't worked with any of these for years--is that they tend to go towards "open" (points gap) as rpm/ vacuum goes up