Just got my car back cause the transmission went out!!! they put in a 9 clutch transmission with a shift kit......works great except........now when i really get on it and the rpm's get up there it sits at red line for a while until i let off the gas and get on it again then it shifts fine.......why would them putting in a new clutch pack and shift kit affect where my shift points are ......isn't that the computers job and how do i fix it............