Just for comparison

512ci sitting in a bone stock E-body, 3860 with driver. This is my weekend cruiser that see a track once or twice a year. Beating on it for two summers since I built it, old school and simple.

4.25 x 4.375. B-block
TF 240 OOTB. 802-COO
10.4:1
Holley 850 DP (4781)
Holley SD intake with 1" open spacer
MP .528 with 1.6 rockers
6 Quarter "Hemi pan"
MP Dist 18°/36°
Carter mech fuel pump with 3/8" original fuel line
TTI 1 7/8 headers with full 3" exhaust

T/A 10" converter flash 4400 rpm

Rear 3.91 +Gear vendor = 3.05 and 9x28 slicks

Engine has plenty of vacuum for my factory PDB and sound "stock". Best ET so far is 7.19 x 95.61 MPH.
I hope for one more day at the track so I can do some more adjustments before I change camshaft.

IMO the MP .528 is a god street cam. I think you be satisfied with that cam.