This manifold allows the use of 30 pict-1 31 pict-3 or 34 pict-3 carburetors without adapters. Manifold flange is drilled for either stud pattern and comes with heat risers gaskets and plugs. OEM NUMBER: 113-129-701AQ NOTE: These are no longer drilled for the vaccuum port as shown in the picture. The boss is there but you will need to drill it yourself if you want itIntake Manifold Universal for 30 31 & 34 Solex Or Brosol.