ok so i own a 91 NA supra. i can get a 88 for free if i want it. the 88 is a turbo. someone told me that u cant put a pre 89 motor in a post 89 car becuase of some wireing difrences. is this tru can i drop the motor down in it. im not planin on doing it now im gonna rebuild it if it will work.thanks for the help