MattsY. I have a new Mummert single four barrel aluminum intake manifold purchased from John Mummert which I ended up not installing because the owner decided he wanted heat under the carburetor for Northest Spring and Fall driving.
John's Internet web site price list description:
DP9425-LR Aluminum Dual Plane Intake Manifold 1-4 barrel. For vehicles with low hoods. 55-57 Thunderbird $415.00
Never installed. New in the box. Will sell for $400 plus USPS shipping cost.
Contact me at firstname.lastname@example.org
or call me at 315-487-6009
a.k.a. Charlie Brown
near Syracuse, New York