There is a guy on EBAY that reproduces the factory 1957 2x4 stuff for Ford and T-Bird. He has the fuel lines (different for T-Bird since the carbs are mounted backwards) and linkage parts.
However, I'm not sure about the carb spacing on other intakes like Edelbrock etc. His fuel lines are for the factory manifold spacing.
His EBAY name is natolibird (Felix Natoli) I think he's in NY state.
Sal