1975 Primavera Carburetor

Schaltroller / Classic Motoscooters Vespa Smallframe
1

My DellOrto SHB 19/19 carburetor has a broken quarter section where it fits into the manifold.  I need a new Carburetor.  The engine is stock as far as I know.  I do have a Leo Vinci exhaust.

Is there any advantage to buying the Polini 19 Carburetor over the DellOrto SHB 19/19?  If so what would be the benefit in performance.  Would I need to buy a new manifold also if I bought the Polini 19 carburetor? 

2

If your Vespa is standard regarding the engine, you will only need a new carb.
There is no advantage to buy the Polini carb...
Just take the replacement Dell'Orto and check if the jets are identic.