I was an AMC fan before I went Mopar( back in the 80's).
The AMC v-8 can make enough power to surprise a lot of people. Sounds like a nice build! At least you can buy decent parts for them now. I would probably look into a cam with 904 specific lobes since its not a high rpm build. The extra lift with the Edelbrock heads should work well. Might make a little more power than you are hoping.
Keith