Stroker Head Pipe
My dad did the same mod's as you did except the pipe. He dropped the needle clip one position and changed the main jet from a 128 to a 132. The mixture screw is set at 1 3/4 turns out. The stock settings made the bike too lean with the baffles removed. Elevation is about 100 feet. Before you buy the Stroker pipe try removing the stock pipe and grind out the huge blob of weld around the flange, inside the pipe. You will gain 10% in flow area, and it's free.