cant believe all the b.s. , and only the last 2-3 contributed. ---------.045------------Otherwise, gap them anywhere from .035- .060 and forget them.
point type ignition- .035
Mopar electronic -.040-.045
MSD and others -.040-.045 Seat of the pants guess.
The dwell and the coil produce the hotter spark. MSD has a hotter spark and multiple sparks but you don't need .060+ gaps. I can't find what MSD recommends. I guess they don't.
The gap widens as the plug wears. Leave them in a long time and they will get to .060. lol
tmm