I have pics of Fred Terry's 615hp twin supercharged Pantera I can send you.His engine is extremely close to yours.Do you have any pictures of your gas tank?
As for 180 deg headers,I have had them on my car for several years with no heat issues at all.I had thhem HPC coated and added two small stainless steel heat shields to the car and a shield on the deck lid.
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.