well, I mispoke in the last message to all of you.  The INDUCTION has been reversed on the IO-320 Lycoming engine to a forward mounted version.  I am looking for a source for an exhaust system that will work.  I bought the system from lancair and it is not fitting at all.  Would like to hear from the Lancair 320 crowd who are flying the IO320 engine.         Thanks          Tom Rohling