Headers for a 5.2 (318) in a 75 Fury?

HI Thanks guys. I guess it is a B body.. Sorry.. it looks like there's not many to choose from . Jegs only list one for the B body and wow 800+ $$ . I'll see about finding the proper forum.. one for the B bodys.. do you know if there is a better flowing stock type of manifold that well flow better than the stock 75 ? thanks
Tim