I have been reading the 670 threads with interest and I know it is stated that the hacman mixture adjustment is not supposed to work on them. My understanding is it is related to the rave valves. My question is would it work on the engine when the rave valves are not operational (such as below the opening rpm)? In other words could you use the hacman in a cruise setting and have it richen up when you go full throttle for climb/take off when the rave valves are open? Or does it do the opposite and lean the full throttle condition too much? Just curious as to what actually happens
Mark