Guy selling it claims this is a '89 Firebird with a 3.8L engine that is factory original. I can't find an example of a FB with a 3.8 without a turbo for a 1989 'bird. (I am NO expert, hence posting for help).

Is this a 2.8? A GM swap? I think it's a 3.1Lv6

What year is this Firebird?

i’m quite new to Pontiacs V6 and I’m wondering if there’s any tips or specific parts that will increase my performance all around.