I am looking for some help for advice. 2014 GT500 with mods. Working on the tune. Doing a pull in 4th is good until you get close to 5k and then stops pulling and seems to be like breaking up. Doesn't seem to do it in 3rd. I was in 3rd doing a pull to close to 6k and didn't do it. Just seem to do it in 4th. I have attached the log if that helps.