Well in a couple of weeks i'll be getting a 1989 ford f-150 5.0 5Sp with 151k on it. All original never abused. Its been my dads truck for almost my entire life he bought it new in 89. Ok enough about my childhood heres my questions.

1. The truck has a mis, its been tuned up and several sensors have been replaced. Sometime the the truck runs great and then it will start idling very rough and sometimes even stall. Could this be a fuel related problem such as a bad injector?

2. Will EV6 injectors hook to the factory 89 harness? if not what is needed to swap the injectors to the 4 pintle design?

Thanks,
-Nathan