Edelbrock Streetmaster 318

question --my car currently has a streetmaster, but i also have a ld4b I was thinking about replacing it with.....could I expect any improvement?
in other words streetmaster or ld4b? i have a mild 318 mild 318,727and 355s
anybody?
thanks bruceO:)

Scat-Pack-North

Before you change Intakes.

What Carburetor are you running with now ?

Paul