engine knock

  1. jayochs

    Engine Engine Knock Thread

    So I figured i'd post this over here too as I initially posted it on Mustang Evo, but I want to get some more opinions! Pretty much, I got an MPT Performance 87 tune as I wanted to keep the car running 87 because well, the 3.7 was made to run regular, and now in NJ with this ridiculous 12% gas...