Correct Gord, with the phenolic spacer, normally you do not need a flange gasket. The phenolic (heat) spacer has the vacuum hole drilled into it, but if one uses a gasket between the spacer and carb. flange then they need to make sure it has the vacuum hole in it too.
1953 Chevrolet 3100261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done
In the DITY GalleryVideo of the 261 running1964 GMC 1000305 Big Block V6, sm420, the next cab off restoration
