Yes it will fit. 91 and 92 exactly the same
No, because the two years have two different body styles
Yes, infact I own a 1991 Camaro RS V8 5.0. I purchased it in 2007.
1991 to 1992 rs or z28
8.5 inch 10 bolt.
in the fuse box
I have a 91 rs 305 v8 and get about 19 mpg.
i have a 92 rs and it has a electric