I have an 84 gn all stock ecu. I have a ecu from a 86 that I was told I should put in. I am very mechanically inclined but new to these turbo cars, always wanted one, now I got one and am in love but need to figure them out. Anyway, if I plug that in, whats it gonna do, or what else do I need to make it work. If I get a turbo tweak chip, what do I need and what will it do. Any help is appreciated, Thank You