If combined with the right components (race-exhaust, carburettor,...) Polini's Corsa kit will produce up to 14 Bhp; topspeed will be up to 120 kph. This kit should be run on a carb of at least 17,5mm diameter, only then will there be sufficient internal cooling. If set up properly, this kit may be very reliable. Kit comes complete with head, gaskets, piston, a set of carbon reeds and the correct spark-plug. Check out the power curve (of a properly set up example) under the heading "Powercurves"

performance 9-11 hp