Budiak:
For excellent info and hard-to-find performance parts for your 6 cylinder, go
here:
http://www.cliffordperformance.com/home.htm
Explore the site; they have a great message forum where you can ask questions and get answers regarding the inline 6, specifically. We can help but frankly, the
Clifford site is geared toward six cylinder cars including older Mustangs like yours. Check it out.