Comp Cams 7103 keyway adjustable billet cam gear

You can advance or retard it to its maximums either way and you'll never hear the difference.

That said, you'll want to retard it if it will even have a snowball's chance in HELL of sounding more lumpy.

But that's the silliest reason in the WORLD to get to get a cam to sound different than it's designed installed intake center line.