Well, heres my schpeeel. Do you have a front motor mount? If not be careful launching at higher RPMs cause of the front end hop you are going to get will ruin the launch. Also, what kind of reaction times were you pulling? The last time I went to the track there were two yellow lights before the green and I literally launched full force on the second yellow light and pulled out a .044 reation time and lowered my times by a lot. Double clutching is also an option- keep the gas pedal down when you push the clutch in and shift. Not reccomending that you drive down the street like this as it will burn your clutch to s*** but if you are looking to get better times at the track, it does help! Last time I went to the track I pulled a 15.9 with a SRI, axel back stock replacement exhaust, stock boost, and all season tires.