Stock they had 230 hp with 385 ft pounds.
Yes
No they will not.
depending on model of truck.
Diagram of 1990 chevy truck steering column
A stock 1990 Chevy silverado with a 350 cubic inch, 5.7 liter V8 engine produces 210 horsepower.
yes, they should be identical.
Yes it will.
Which engine?
That would be the 700R4
7.9 to 1
NO. It has a cable.