360 vs 383
I have NOT read this whole thread, but I'm sure there are great comments in it.
For me, one thru four, the choice comes down to what chassis I'm putting the engine in.....
Early A body: easy.. small block.
67 up A body, probably the 360.
B-body: no brainer, the 383
E body: ditto
Basically, the bigger, the heavier the car, the more it needs a big block.