Is this car worth 8000

I've seen more $ asked for worse.

Pros:
Appears like a solid body
Has entire drivetrain

Cons:
Been sitting a while, and personally I would have to at least regasket the engine and trans so see what they are and make sure things are right at the min.
May need new fuel lines
Brakes lines may need replacing

If you want a race car it's decent starting point, if you want a street/strip car, going to have lots of $ making it that. Personally, I don't think ladder bar cars are that great for the street.

Notchback barracudas don't seem to bring the $ of other A bodies.

Personally, I wouldn't pay the asking price. I honestly don't see you being able to flip the car for a profit either. But if you want that year/make car it could be a decent buy if you'd figure out what those things would cost you individually if you had to say buy a /6 solid body roller and then buy the drivetrain, etc.