Kelly,
I am also interested in running 180s on my car and have thought about fabricating a set myself. I ran across this thread a few months ago and found it to be very informative: 180 Header Fab on 400 Swap
I also took some photos of a 180 set-up that Quella's son was installing on a Group 4 car in Castle Rock in March. I'll see if I can find them and post some pics.
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.