EFI stacked injection for 383
There's a guy out there named Fran Olsen who converts vintage Hilborn systems. The company I work for supplies the electronics most of his customers use.
Quite a long link for his site:
http://foxengineering-efi-fuel-injection-hemi-gasser-mopar.com/index.html
What exactly are your goals with this? Build something of a more drivable car with a vintage dragster look? Or is it for a particular class of racing and you're more concerned with how much performance you can get and not how it looks?