My former set up was a 414, with Pro comp cnc ported heads.... had never ran a dyno to have an idea on Hp ratings, but best e.t on my 2900 lbs car was 10.25 @ 126 mph
Online calc says you were roughly 530, 550 will only get you another tenth or so. 600 will be high 9’s. Is your car set up to pass tech dipping into the 9’s? Adding more safety gear/weight will move you backwards a bit.
Another way to ask the question, what actual ET are you trying to hit?