Mopar purple .528 for a 383?

Just wanted to chime in regarding your carb choice, a Street Demon might not work too well with that cam especially on a single-plane intake. If you already have the carb it's worth a shot but if not I'd suggest something better suited to hotter engines with low idle vacuum (Holley DP??) as that's what I assume a 383 with a .528 Purple Shaft will behave like. I'm running a 750 cfm Street Demon on the 360 SB in my Duster with ported Edelbrock heads, 9:1 comp, RPM non-Air Gap intake and custom-grind .548" lift cam with 274/278 adv. duration, 222/226 @ .050 and it's kinda borderline in terms of tunability and fuel delivery for the combo.

EDIT: forgot to mention it's a hydraulic roller cam hence the high lift relative to duration, in case you were curious