Be aware that the DLE's come from the factory with the timing sorta set around 35 degrees BTC. That seems to run okay but 28 is considered more normal and Tom at VV recommends retarding the sensor all the way in it's slots when changing to the rcexel unit. There is a wide range of timing that works. My take on that is to watch out for detonation or overheating on a hot day, and lean runs.