RJT> I'm missing something in my understanding of this,  since the
 RJT> only thing I can see that goes through that TB is air,  and
 RJT> that's going into the intake valves.  How would residue due to
 RJT> fuel additives get up there?

is there not a PCV valve in there somewhere? does it not pull
"fumes" from the crankcase and feed them back into the airflow to
be burned again?

)\/(ark