Mr. Gasket says this can be flipped either way, so you can go spread bore carb to square bore manifold; or from square bore carb to spread bore manifold. Mr. Gasket Carb Adaptor Plate No. 1932.
Mr. Gasket 1932 Carb Adapter - Open Center
Mr Gasket Carburetor to Quadra-Jet 4-Barrel Manifolds - part # 1932
BBC 1/16in Intake Gasket No Center Bolt Hole MR. GASKET 121
1933 MR GASKET CARBURETOR ADAPTER 2BBL TO 4BBL NO HARDWARE
Mr Gasket Mr. Gasket Chrome Master Cylinder Cover
Mr Gasket Co. Chrome Brake Master Cylinder Cover Cap Mr Gasket 9772 CHROME GM