Yes unless the 700r4 came behind a 2.8
YES.
a 700r4 trans out of a s10 with a 4.3 will bolt up to a 305 but you will have to use flywheel cover for the s10 trans.
Any small block Chevy that's older then 1999 will bolt right to it.
Yes, It will bolt right up to it with no problems.
No
Not without major modifications. The 4L80E is shifted electronically, while the 700r4 is not. can you specify what kind modifications?
Yes...and most of them came with the 700r4. If it wasn't originally equipped the 700r4 then you may have to change the tranny cross member.
700R4
700r4
NO.
turbo 350 or 700r4 turbo 350 or 700r4