This is just my experience on going from old school to electronics. Had a old Mallory double life distributor, thats the square lobe dual point unit. Changed out to a new MSD billet distributor and 6al box. Still use the Accel super coil from the 70's, same coil i've had on about 6 cars. Didn't make .01 difference.

it's ok to butt heads, just don't do it with a butthead