Hi Netters, I am getting 2100 rpm with a 52/48 prop static.The engine runs very smoothly,and responds well but on increasing throttle at 2100 rpm the engine quietens and revs drop.On throttling back I can get 2100 again and very smooth running.The engine is a 2 l VW as new,running on twin Zenith/stromberg carbs.Ignition (for now) is a VW Points distributor.with centrifugal advance and vacuum advance.I intend going for a Compufire ignition system with backup, later on,but would like to hear your views,on this engine going quiet and rev drop on increasing throttle above 2100 revs static. Best Regards, Eric ZU - BMP ZS - GML. South Africa.