1992-1994 Sunbird base model’s came with the “last” straight GM used version of the 2.0 OHC engine like my car has. This version specifically is n/a - but is MPFI, DIS, and OBD-I. My car (Turbo - LT3) has MPFI but is distributor based. The fuel systems and ignition and ECM between these two versions are compleatly different.
This version is plentiful, it’s one of the easiest to work on engines I’ve ever seen, the parts are dirt cheap - there are tons of motors at the junkyards, and they are quite bulletproof. I could tell you a lot you could do to upgrade the motor and car to make it quite the lil racer… You won’t get a lot of power out of it n/a without doing head work, cam swap, or pistons swaps, but you could get it up to 150 hp or so fairly easily.
Holl-r at me if you want more info.