street demon2k3

i dynoed my car a few weeks ago and it made 269hp/283tq w/ ram air hood/box and cutout. i just recieved word that my LT's and y-pipe should be here on thursday. i might be able to get them on by saturday night and dyno it on monday afternoon. what do you guys think im going to dyno? i hoping for 290hp/305tq maybe a little more. i just want to beat this guy who dynoed 296hp/315tq w/ a full bolt on, suspension,and mild cam '95 mustang gt. his best time was 13.1 on street tires, im hoping to go low13's to high 12's with just the LT's, et streets and a tune. if not im going full suspension!!!!!