(be careful which model AFR head you pick, they are a great head for SBF but some are more suited to competition use and you don't need to go too wild on valve size etc).
There is a good and easy to read article on AFR heads, although it's a later engine it's still a 302 and they use a better inlet manifold ( I have a Holley Performer RPM - ported- on my race Mustang as we have to use dual plane and it revs to 7,500 easily, they are $200 plus cost for tuner to port - not a hard job).
Correct. As stated, you want the AFR 1388. It's a 185 intake runner. All accessories bolt up.
BUT as stated also, you can't run them with stock pistons. The valve relief in them won't accept the 2.02 intake valve.
For a street car, there is little performance difference with the 195 and the 205 UNLESS you increase the cam lift to about .700", increase the cam duration and turn 8,000 to 8,200 rpm.
Those heads also raise the exhaust ports 1/4". It doesn't sound like much but when your headers all of a sudden have clearance issues that were never there before, it's the raised ports. Some cars will need custom headers for that.
You can run them with any intake manifold and carb but if you want to take advantage of them, you need much better then stock and really want a valve lift of .550 or over for the street. More then that and it starts to be a race only engine.