What are you all seeing on your rudder trim positions? I have a cherokee 140 1968 model. It has 160hp with a 62" prop with art's tip mod. I can static 2290 on the ground and at 2,500' I can turn over 2,700 rpm with the airspeed well into the yellow. I have had the plane rigged to spec. Everything is neutral. With just me and 36 gallons of gas I have to have the rudder trim spun almost all the way back, unscrewed. The picture below is what I get out of it at 2,500ft and 2,460 rpm. Where is your rudder trim and what are you getting? The plane will fly straight and level like this and I get better than book speeds.
