Planning to go at about 18PSI but I hope my Megasquirt and extra 440cc/min injector will be able to take care of that.
I want to adjust the carb mainly for off boost, smooth engine operation and good mpg.

Concerning your EFI conversion, I think your list is ok, just wanted to mention that I owe 4 new red Saab injectors (0280155749) that should be fine for the case.