I've never attempted full fenderwell headers on an early A-body so someone else will have to provide info on that. I've seen members who have had custom sets made for them, but never any that they purchased and then modified.
I posted links below to my header install so far; they are ProParts headers which are being re-manufactured now, but are pricey from the new manufacturer. Please don't believe that I'm saying they aren't worth it; I definitely think they are after having used them on early and late A-bodies, but I can't imagine purchasing them new for something I own. ProParts are a semi-chassis header; in other words, some of the pipes run inside the frame rails and some of the pipes dump into the fenderwells. On the driver side, two pipes go inside and two pipes go outside. On the passenger side, three pipes go inside and 1 pipe goes outside. With these pipes, it is possible to run a 4-speed with a modified bellcrank and also larger tires as not as many pipes are dumping into the fenderwells. To open the pictures in my links, just click on the download icon for them. Unfortunately when I built that thread, it was before the website was upgraded so the pictures do not appear without downloading them. I just used pipe connectors everywhere I cut and rotated a pipe for now until I get around to welding everything in.
65 Barracuda w/500ci 440, Stage VI Max Wedge Port Heads, 4-speed, and 4.10 Posi Dana
65 Barracuda w/500ci 440, Stage VI Max Wedge Port Heads, 4-speed, and 4.10 Posi Dana
