Need 340 Build Advice

I'm wanting to do a ground up 340 build in the near future and could use some advice. Looking to build a hard running street engine but still use pump gas. Will be going in an A-Body, with auto transmission. The only engine componets I have right now is the standard bore block and forged crank, both are in good shape. Block will need bored .30 to clean up, crank should turn .10-.10. Need advice on pistons, rods, cam, and lifters all of which I will need to buy yet. The plan for the heads are Eddys and an Eddy intake to go with it. I have a rebuilt Holley 3310 carb that I was thinking of using, but I want the bottom end as tough as possible in case I go with a NOS kit or superchager someday. So for starters I need a recipe for a hard as nails bottom end with top quality components. Any help will be appreciated...thanks. :salut: