k,
Sometimes I don't have the time of day to get online.
There were several companies that made headers for the Ford 60° V6's of the 80's:
*****JBA
Edlebrock
**Pacesetter
and what I can only refer to as lesser brands
Your best bet will be a set of JBA's.
PS, internet forums are usually slower that snail mail, if your lucky but the information could save your life, if your patient.