Not the PS .557, but i ran a best of 10.91 @ 120.56 (on a 1.51) with an XE284H cam, completely stock 906s, 9.73 compression, M1 intake, 750dp, fenderwell 1.7/8 headers, 4400 stall, 4.10 gears shifting at 5600, race weight was 3150. 75 duster.

Went to a solid comp 282S cam, ported the heads still keeping the stock valves, Wieand TR with 2 600s, 1st. pass un-tuned, On a bad 1.63 60ft. in the heat it ran 10.87 @ 123.58 shifting at 5800

So high tens are doable at 31-3200 lbs. with the .557