The one or the other knows my coupe already from other contributions I have just installed on a WN motor ne schrick camshaft 276 degrees n 36/36 Weber fall current carburetor head plan and 75cm diameter exhaust system of Simons without pre-muffler. My problem he runs like a 90ps 1.8er has the assumption that the main nozzles are still far too small There are 120 in it thinking that too little is the one if I pull the choke he does not quite the opposite he runs better with pulled choke, at 90 degrees oil temperature! Find someone who can give me some tips!