318 LA hp and torque question

Im new to the mopar world so I would like to ask a question regarding my 69 notchback barracuda w/318 La. The book states this engine is 230 hp @ 4400 rpm and 340 lb torque @ 2400 rpm. It is bone stock with the orig. intake and 2 barrel carb and single stock exhaust. If I install a SP2P 318 edlebrock alum. intake and 600 cfm carb. along with dual exhaust what kind of hp and torque increase would I be looking at? Thanks

The NHRA's way of rating power is for there racing issues.

The intake should not be used. Look for a LD4B, Performer or Weiand Action Plus.
You'll need a small adapter plate that you can get from Edelbrock.
The 600 is fine.
With the dual exhaust, your probably looking at 250/260HP.
Adding a new cam can add 20HP. Depending on the cam.
I would suggest headers into a 2-1/2 exhaust to help the cam work better and add additional HP and torque.
Over all, with a modest cam, you could make 270/280 HP without changing heads or pistons.