Cam selection for 5.9 mag

Trailbeast, I was hoping you'd chime in, cause I know we have similar setups, and that your at nearly the same elevation as me.
I know some guys pic cams on how they sound, but I dont really care about the sound.
Just want it to have a little more pep that it has now, and like you I dont want to ruin the gas milage and I do travel on the highway a lot.