Im selling a used set of Poston Headers that were made for 64-67 300/340 engines 6+ years ago. These are pretty rare and hard to find these days, no one else makes long tube headers for this engine/chassis combo. I'm asking $500 or make a reasonable offer and we can go from there.
About a year too late for me. I searched for 5 years for a set and finally gave up. Good luck on the sale.
They are for a-bodies, I have the modified linkage for column shift cars. They fit very close to the floor, and were dinged for clearance at the upper control arms.