3783244  4-Brl  62-63  250  WCFB 327,
I would like to use this manifold on my 1972 307ci Malibu, will it work. Also, please need advise on a carburator for it.  

I wouldn't recommend it,with your oil fill and pcv already in the valvecovers in your 72 set up.Don't know your budget or intentions but would suggest a new or used aftermarket intake.  WIEDER  

Gotta agree with the advice above.

One cheap way would be to find the high rise iron intake of a later 327/350 that uses a Q-Jet carb. They were pretty good manifolds and would work well on your 307.

Check out this story Super Chevy did on building a 307.

http://www.superchevy.com/technical/engines_drivetrain/cams_heads_valvetrain/sucp_0604_chevy_engine_performance/index.html  

If you are on a tight budget the 55GUY route is a good idea,they're cheap at U-Pull type salvage yards.I walked by many of these in the past in the yards,even maybe a Q-jet still also on top which are great for mileage because of the small primaries only with a light foot.Plenty of information on rebuilding any carb and pretend your a surgeon when overhauling any carb by means of having a very clean work area.Try to find a carb with a tight throttle shaft.Keep us informed    WIEDER