[recycled sixtie]

To give some kind of closure on this thread my son in law stated that the indy shop said the 911 needed a catalytic converter plus the engine was smoking and the more it was driven the worse it would get hence the $5000 offer for the car by the owner of the indy shop. It could be the AOS though but if they did a good diagnosis then they may have factored that out already. Looks like this 911 is roller material.