Yes.
Yes it will bolt right on.
Not without modification. The 1973 and 1974 body styles are unique in the Nova series.
yes, they are the same exact cars the only differences are the front headlights and grill and the tail lights otherwise the cars are pretty much the same. so yes, a 73' nova hood will fit a 70'
not without modification
Yes
No
NO, they are two different body styles
No, they are 2 different bodystyles
Yes. The only difference besides the inside door panel is the 73-74 doesn't have the wing vent window like the 68 -72.
Yes... 1972 to 1986 CJ hoods are the same.
Yes.