If its an '89, it will be TBI (throttle body injection). Awesome year of a 360!!!! It has the roller cam (great for todays oils), it also has the 308 heads (one of the best pre-magnum heads). It also will have the lobe that drives a mechanical fuel pump on the front of the cam (even thought its fuel injection). If it is truly a 1989 motor, it is a great place to start (so long as it doesn't have 250,000 miles on it).