what fits? 71 duster 318 exhaust manifolds?

[gdonovan]

anything i can get my hands on will work.. 340 manifolds if i find them affordable i'd do, if not 318 manifolds will be fine.. there is no exhaust on it at all so that doesn't make a difference either/

LMK if you were interested in the 340 manifolds, I was going to list them soon regardless.