how much cam

i just got off the phone with comp...(not very helpful with mopar application)
they suggested a 242/248 533/538 on a 110lsa for my dart, thats based off of a 1.6 rocker and i have a 1.7.

my motor already has a 288/292 501/513 on a 108, those ratios are based on a 1.6 rocker so im not sure what my lift and duration are.

Im just looking to get some more power out of the car, my trap speeds are a little lower than i expected. how much of a gain would i get by changing cams

my cars specs
motor is a 2000 360 magnum with edelbrock alum heads
65 dart 2700 lbs
8 3/4 3.91 gears
3800 stall
air gap intake
holley 750
904