i have a chance to get a 97 gsr swap for cheap, what do i have to do to make it BAR ready into my 1994 civic Si, I've searched and people say i have to convert my car to obd2, some say i have to convert the engine to obd1, some say keep it obd2 and just hook everything up and pass it as a obd1 engine? like cheat the ref?

just need a definite answer, don't want to get an engine that i can't bar in my car.