cam selection

Ok heres my setup as of this moment. 71 duster, 340 bored .030 over 10.2 C.R., new eddy aluminum RPM heads ( unported), gear drive setup, 509 M.P. cam, victor intake, 780 CFM Holley, TTI step headers, with cutouts. 4speed, car, with 4:30 gears, and superstock springs.