Wich intake manifold 4 a Holley600?

After 3 months waiting ,my engine is is working again,it took me that long to make the changes i needed to get the engine working fine.
Now i've got to change the bijetDFV-446 carb. and intake manifold that originaly came with all the V8(318/5.2l)) Dodge's in Brasil,weak and full of problems ,this piece of **** carburetor is the only thing that still giving me problems.
So,before the end of this year i'm going to change it .I've got a HOLLEY 600CFMs 4-Barrels(vacum second stage) carb. and i'm not sure about wich would be the best intake manifold to use,considering that is a every day car,i go to work every day with that car ,i'm not going to race,just want my engine better without spend too much fuel.
Sorry about my english writing.Hope you Understand something!!!!
Weiand-Stealth???????

My Dart 73.jpg