I was wondering evertime I advance my timing my intake gets louder and idle is above 1300 RPMs, and evertime I retard it my intake gets quiet and my idle is shitty. Is this because when timing is advanced the engine sucks in more air decreasing RPMs and making the car faster at low end speeds. And if retarted the engine sucks is less air increasing RPM's and top end speeds. That is what I kind of figured out. Also would a cam gear make a difference on an automatic?