Here's a different angle on the fresh air inlet control piece.
NOTE ADDED 6/13/18: Apparently this piece was added sometime between 1973 and 1974.....so YMMV for 73-74 owners!
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.