Intake and carb choice

My manifold is open plenum from the top of the runners to carb flange.
The long runners and small plenum worked at lower rpms fine with
the 528 mech cam I was using. I used those carbs since it was a street car only and I already had them to rebuild.
Most times driving around the secondarys wouldn't open up. I know there are better ways to use a tunnel ram to its potential. This ended up being usable everyday for me without any problems other than no choke on cool mornings.