Now, a lack of good tone can come about as a result of your touch, the guitar itself, the amplifier, and yes--the strings.
Why not shop around for a different guitar, or take your current one to the music store and tell them about it's lack of tone? Even if you want to stick with your current higher gauge strings, it will sound a billion times better through a guitar that sounds good no matter what gauge strings are on it. Just my two cents, hope you look into it.
Back In Black isn't a song. It's a divine call that gets channeled through five righteous dudes every thousand years or so. That's why dragons and sea monsters don't exist anymore.