Best Weber Progressive 2 barrel

kowalski440 said
Offy made a 2 x 1 bbl...not sure on 2 x 2 bbl.

The Offie 2x1 can be easily modified for 2x2 operation. The carb mount pads are large enough and can be redrilled.
Clifford also has a 2x2 webber system. They don't list the manifold separet but I would bet it could be bought as a stand alone.