Wrong end of the log there buddy. INTAKE leak is the first place I would look. Changing throttle bodies makes it worse? Well, that's the first place I'd look. Bad gaskets, on TB, Uppper and lower intake, etc etc. Second thing I'd look at is timing. Maybe she don't like 14* of base timing. But I'd bet my butt you have an intake leak, and she's suckin' air.
Check for intake leaks first, then go from there.
