Help me build my 340

Be easy on me now, I am just getting into this. I am 22 years old and just purchased my first mopar project a couple months ago. I am looking for suggestions on my engine build and torque converter.


Here it is:

http://www.forabodiesonly.com/mopar/showthread.php?t=271231

I have a 1971 Duster 340. All original, numbers matching. I am going to redo this car. I am going with all stock interior, paint etc. It will be very close to original. I want to build the motor to have better performance than original. But I want a stock vibe. When the hood opens I want it to look very close to original.

Specs on the car:
Original 71 340, currently mechanically sound with 90,000 original miles
727 auto
3.91 Sure grip
Upgrade to 15" rims / taller tires
Will be a street car /cruiser, but with a wild side. Not a strip car


Here are a few build parameters I have in mind:
Run on 91 octane gas
Stock carb (800 Thermoquad)
Stock Intake - improve flow?
Stock Heads - improve flow/new ss valves?
Stock Manifolds - improve flow?
New pistons
New cam - Which one?
Stock rods?




Questions I have:
With the stock components above, what can I do to ramp up the power?
What is the max HP I can get with better internals and porting?
Oil mods that should be done as long as I am redoing the motor?
Would running headers totally kill the restoration theme?
Torque converter recommendations?


Please let me know your opinions.