Garage Cabinets, Garage Storage, and Garage Organization

I am currently rebuilding my 1967 Galaxie convertible, it originally came with a 289 which I did not have.  So I put a 351W with a 4bbl carb and Edelbrock alum intake.  I would like to put jet coated long tube headers on it from flowtech to let the larger cam and 4bbl carb I put in it breath.  I can't find a specific header for the Galaxie, but they make a long tube header for the same year of Fairlane.  Will this clear the steering box and firewalls?  To my knowledge the sub frame is almost the same if not exaclty.  The trans cooler lines are completely compatible between the two cars.  Any info would help before I order the headers.  Thanks.
Eric McCarty