Hey y’all. Just picked up a 95 GT that has a 5.0 cobra. Previous owner doesn’t know anything about it because of him inheriting the car. Now, I replaced fuel filter and air filter. After replacing air filter it started to run differently. Low power taking off but at higher rpms still has power. I also found a selector switch inside the glove box. Anyone know what that could be? I tried to run codes and it popped an error. I’m guessing that wire labeled “shielded calibration select cable” might be a bypass from the factory computer? I’d like to run a log and remap the thing but without the OBD plug in working I can’t. Any help will be appreciated.