MK Racing supply Vortex RVXX engines and spares Pavesi engines and spares for the ICC/KZ2 class.MK Racing supply Tonykart chassis and spares from Cadet to KZ2 with over 20 years experience of the Tonykart brand. MK Racing have a state of the art Dynapro dynamometer for hire from 1Hr to a day.Overlay graphs to see which is your best engine or carburetor