I would take his word seeing as he probably did all the work to the car..
Hey Skyline King did it have stock ecu ?? i am asking this because i wanna know how much extra power you can get with stock by just using better fuel because most guys on here don't believe you can...
Thanks for your time..
So if you can run 12.8 with thoes mods listed a low 13 might not be out of the books with my setup...