Making the change: 2BBL to 4BBL

[MosportGreen66]

I am strongly considering making the change on my Camaro from a 2 barrel to a 4 barrel carburetor. I am not looking to make the Camaro into a hot rod, just looking for more power, while utilizing basic bolt-ons. Before I invest money in parts and hardware, I thought I would ask the community for some help with my homework.

Here is what I have to work with:
L-65: 250hp, 350 cubic inches (2 bolt main)
Turbo 3 speed trans
All stock, original internal engine components

Will the addition of a new intake/carb set up affect any power assisted options?
Mechanical Options Include:
Pwr Steering
Pwr Brakes
Dealer a/c

Will the addition of a new intake/carb set up affect the distributor, coil, or fuel lines?
If so, what will need to be changed?

Besides updating the carb and intake, what other mechanical pieces am I going to need?
Will I need to change any internal engine components? If so, what are they?

I would like very much to work with original appearing parts, what do you recommend for an intake? Carb? Air Cleaner cover, base, etc? Any past experiences you guys would not mind to share? Thanks very much guys!

-Dan