Manifolds vs. Headers

When you say electronic ignition upgrade, do you mean above & beyong the factory elecronic ingnition for those of us that have it? Like an HEI setup or MSD setup. Or do you just mean upgrading from points to electronic. My '73 has factory electronic ignition, so just trying to clear that up. thx

my factory EI is excellent. thats the last thing i would spend money on. using the factory electronic ignition IS the KISS method in my opinion