Doug's Headers in 64-66 A-Body

I used the Dougs on my 65 Valiant with a 360. It was an auto, but I can say that those headers fit better than any I have ever installed, hands down. Installation is not terrible, as long as you follow the deestruckshuns. Also MAKE SURE you coat the slip fit tubes with high temp permatex. If you skip this step, the slip fit tubes will rust together permanently and the only way to remove them will be with a sawzall.