I built a system based on a 88-91 mustang 5.0 ecu with a programing board, sequential multiport mass air. It ran OK but never perfect I am not a tuner and did not spend the time to get it right, or spend the money for someone to tune it for me. I ended up converting to a FAST 2.0 multiport upgrade. It is self tuning and so far runs very good. If you are not willing to spend a lot of time tuning go with one of the newer systems. Otherwise anything is possible. If you are interested some of the key parts of the mass air system are for sale.