Great comments and insight.
The radiator is a 4 core radiator (new), clean coolant, 195 stat, the engine runs great, to me not rich or lean that I can tell. I have a normal fan and fan clutch set up and it works as advertised. I do have a fan shroud but it is more of a custom built one, when looked at closer there is a good amount of room between the tip of fan blades and shroud, also the shroud is not that deep, as it covers about 1/3 of the fan blades as you look straight down. More than happy to ditch that shroud if anyone can recommend a quality fan shroud that would fit the radiator/cowling and cover the fan assembly.