XE275HL with 1.6 rockers makes a great street beast cam. Big or small block w/Edel. heads. Cam lift goes to .560, right where that head flows best...at least for the small blocks.
I wouldn't base any selection for the 383 based on what worked in a small block eddy head since the B/RB head is a completely different animal with different flow characteristics. JMHO.