I was looking at FPA site and they show a different header for rack and pinion. Since my car is in many pieces does anybody know the difference? I got a good deal on a set but I doubt they are the rack and pinion version. It is a 390 / C6.
Not enough information. I don't know much but here are some pictures that FPA sent me when I asked the same question about a 460 application. I see that their website is no more helpful than it was five years ago.
Possible interference with the C6...just knock the ear off:
(http://i1146.photobucket.com/albums/o531/gasman826/marks1957ford009.jpg)
(http://i1146.photobucket.com/albums/o531/gasman826/marks1957ford016.jpg)
(http://i1146.photobucket.com/albums/o531/gasman826/marks1957ford015.jpg)
(http://i1146.photobucket.com/albums/o531/gasman826/marks1957ford013.jpg)
(http://i1146.photobucket.com/albums/o531/gasman826/marks1957ford019.jpg)
This is how I resolved the problem. I'm going to shorten these so they will be more straight downward pointed.
(http://i1146.photobucket.com/albums/o531/gasman826/460005.jpg)
oops. Forgot the part about it having a 390 C6 combo.