318 carburetor question...

Hi again y'all,

I know that for a stock 318 engine, a 600 cfm four barrel carburetor is not too big, but would a Holley 390 cfm four barrel carburetor be too small? What's the range that I should stay within in order to give the engine to right amount of gas? Again, I have a completely stock 318 with a two barrel carburetor and I'm trying to put a four barrel on top. Thanks guys.