Sounds like a fun build.The sd will work pretty good with what you have.I would suggest getting a holley 750 and throwing that edelbrock in the trash(j/k sell it).A vacuum secondary can be had cheap and won't kill you vs a double pumper.
i would run as much initial timing as it can stand and get all of the advance in by 2500.
That is a good cam.I loved in a mild 440 I had.
How about some pics?