Exhaust manifold question

The driver side manifold must be from an a-body, it does'nt matter if there is power brakes or steering. Also you can use a e-body 1970 340 exhaust manifold too. (all 68-70 hp 340 manifolds are the same) You can use just about any passenger side manifold with a center dump. A good web site to check these things out is mymopar.com, they have tons of information, you can type your part numbers in and find out what you have. It also has part numbers for exhaust and intake manifolds and it tells you what they are for. Try to stay with 340 or 360 manifolds, they flow better, 71-74 340-360 are also cheaper and easier to find! Good luck!