The new CP Polini Evolution Ø24 carburettor, specifically designed to make the most of the power of racing engines, is able to give maximum performance from 12,000 to 15,000 rpm. The coupling to the manifold is Ø28.5: this feature allows you to mount a specific manifold that is able to make the most of the greater air flow given by the CP Polini Evolution Ø24 carburettor.