Shift point adjustment...going from 26's to 28's need help...
I am going from 26x11.5x15 ET streets to a 28x10x15 ET drag. I know I will have to correct the tire size in ls1edit to the height of the 28. But will I have to correct my shift RPM and MPH and by how much? I need this advice PDQ as I will be racing it tomorrow night.Thanks,
J


I still getting use to it.