hmmm.... This is one of those questions that make me want to say: "if you have to ask.....". But, if you are capable of doing an engine swap it shouldn't be too bad. Here are a few of the things we will need to know to help steer you in the right direction:
- Where is the 350 coming from?
- do you plan to us FI?
- and any other specifications you can throw our way.
As I always say anything is possible.... but it may not always be practical... With the current market value of 88 Firebirds you may be better off buying a V8 car and transferring all of the good parts from yours over to it.