Need big block help.

If I was going to use the tunnel ram on a street car I would go with a solid lifter cam
525 lift or bigger. Stay under 300° duration. Holley carbs. If you haven't done much
engine or carb tuning read up to get a handle on it.
I like the tunnel rams myself and have found tuning holley carbs is easier than
working with the edelbrocks.
You would likely do better to get the car up and running first with a single carb
intake if this is your first build.