Had the 509 in a 383 hc in a Duster, 4.88, 29.5 slick, stock street Hemi vert, would run 11.68 -117, 7.38 in the eight, idled nice (600) after working the 780 holly and collector length. Put the engine in a 68 Dart (good vert and 14-32s) went 7.05. I thought the cam worked nice.
