I have used the .528 cam in a few smogger big blocks.
The 440 I ran managed a 11.901@111.6mph, car was 3650 with driver. I also used 1.6 iron rockers, no idea if that helped. 1.62 60' times. Open headers in good air. Ran 12.3@108 in street trim. The smogger 400 ran 12.9@108 with 2.0 60' as the converter was too tight.

I currently use a stock bottom end 69 383 with 452 heads and a cam close to the .528 and 1.5 rockers. It runs 11.8's @ 114 in the same car. Its 9-1 comp and I race on 87.