1969 Swinger "340" and parts car

Thank you for reminding me. They may be wrong. When I bought the car it had headers. It was hard getting a car inspected in Pa in '74/75 with them. They rusted through. I was attending Vo-Tech and another guy had a set of manifolds, I believe from a cuda. They worked, so I bought them. In 74 no one was worried about correct year or numbers matching. You used what would work.