I think easy low 11s/7.20s even with a 509 cam. I wouldn't worry about gearing its not bad with a 26" tire. Your stall will work fine too. The 509 is not optimal for this engine but you probably already know that. If you must run a hydraulic id find something with similar duration and more lift. Id recommend you check out the comp xe295hl. It has .561 lift and is 251@050.