It probably does have a lot of blowby. New engines usually do until they seat the rings. Blowby plus no PCV valve can equal a big mess. It's possible that's all it is, but I sure would like to have thought that a name as big as Joe Sherman would have known that. Is it possible a PCV was run on the dyno and omitted on the installation? The PCV serves two purposes here. One, it puts a vacuum on the crankcase and helps keep the oil IN the engine. Two it puts a vacuum on the back side rings and helps them seal oil from the combustion area. I'm actually kinda surprised you didn't have a fire.
