I installed Edelbrocks Pro-flo 4 in my Demon in the spring and it's been running great.
I don't think you can really go wrong with any of the EFI offerings.
Hey, been a member for a while, usually lurking. Figured it was time to post and say hello.
I'm from Ontario, Canada. I have a 72 Demon that I've been working on for a few years as a running project.