I want just a bit more grunt in my Benelli Quattro Nove 50x, and thought about just trying this: TECNIGAS NEXT R Exhaust, Doppler S2R Reed - Minarelli, Remove the shims from the variator, Polini cut 2 fit airfilter, and a bigger nozzle in the carb. Is this a good set up, and what nozzle do I need for this..??