They do make plastic see-thru filters. I have one before my fuel pump so I could see crap flowing in. It is far enough away from the header so it won't melt but it also won't shatter from a rock, etc.
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.