Big Valve V.2 manifold with large twin racing reed block. For vertical Peugeot, Kymco, SYM or Honda engines as specified. With this intake system and a 19mm or larger carb you can get the most out of your engine! The intake system has a vacuum port. Recommended for conversion to premix lubrication. Comes as shown with mounts, reed valves, 23mm adapter for Dellorto 10-21mm and Arreche 17.5-21mm carbs, 32mm adapter for PWK carbs up to 30mm. Excellent quality kit at a very good price, ideal kit for tuning.