I have been having a horrible ticking noise coming from the driver's side for months now. It sounds like a really, really bad exhaust leak but I use Stage 8 locking header bolts and I rechecked all the bolts on the H-pipe. This morning I started it up and as I was walking out to it, I saw smoke coming from the driver's tailpipe. It wasn't black but more blue-white. It wasn't very thick but it came out in a steady stream. So what is the problem? I can't tear it apart for a few weeks when I can use my friend's garage but I need to know what to look for. I am leaning towards a bent valve or screwy rocker. Thanks.