been racing since 1974, my advice is just to make sure everything is right. Fuel system properly sized, keeping track of tire pressure, leaving starting line with the same engine temp, staging the same every time. I have a brake pressure gauge and I leave with the same brake pressure with a foot brake car. A torque converter has a lot to do with leaving the same every time, I had a converter once that you could not leave consistent. I just about wore out the 4-link and shock adjustments, changed the converter and all was well.