Ported Edelbrock versus W2 out of the box !

It is the piston to head clearance....... and if you keep that distance within the preferred range...... there are benefits to be had.

My old 448 with open chambers ran pretty decent for what it was.......10.70’s @3670lbs.
9.7cr, 155psi cranking compression, quench distance of nearly .150..... which means no effective quench....... spark knocked like crazy on pump super(94 at time).
Built with the same CR, cam, etc...... but with a quench distance of .040-.045, I have no doubt it would have been just fine on pump premium.

Subsequent builds I have done that utilized quench dome pistons and a proper quench distance, some with even higher(than 155psi) cranking pressures, have all run just fine on pump premium...... which is only 91 in some of the locations those engines live.