A 9 second car with a Junkyard engine? Seems ambitious but I'm sure it could be done although I ? the reliability of it.
I'm assuming you're on a budget if you're going with a junkyard motor. Most of the idiots you see on Street Outlaws have $300K into their cars (at least that what one of the 405 guys said at SEMA or PRI when asked). My BIL has a
7 sec supra and has turned down offers of $125K on the car several years ago he built the car over years and slowly grew his program. Bracket Racing at the track seems like a safer place to get your feet wet than a 9 sec street/no prep car.
I love G-Bodies but I don't think it's the chassis I'd start with today for building a 9 sec car on a budget. I'd go with a much cheaper and easier to find S-10; if you're going for a no-prep/street racer I think cutting it up, caging it and remove glass and replace with lexan and stuff in a turbo 6.0 you would have a fast car. I know people love seeing the Andrade LSx powered Cutty on Street Outlaws but that's no budget car.