Should I go Big block or Small block?

Thanks for all the help & comments so far! :cheers:

Right now I'm leaning towards building a non-stroker 340 with edelbrock aluminum heads and air-gap intake. Anyone have a similar build or know how much power I could get from an engine like this? I'm figuring where this is going to be mostly a street car I'd like it to handle somewhat well. Adding the aluminum heads and intake should drop my front end weight by 50+ lbs correct? Then I can do some suspension upgrades like some stiffer torsion bars and some big brakes.