distributer cap mods?

do i have to use fastners? I can get brand new 2 or 2 1/2 inch long dorman 5/16 bolts with washers, wouldnt that be ok? I will discard all of the studs. But first i am going to run it all 12 degrees initial and check for vaccum leak around the intake, wich i'm about 90 percent sure thats what i've got. But i will report back later this afternoon with my findings.