| :What is funny is that I had a run with a 1.76 60' and 120 trap speed (both better than my 11.90 run), but it was a 12.05. The 1-2 shift will make or break you with the NA rear end. Yes. I have also found that shift points make or break the run. You may think that you had a clean run but if the shifts points were off, it will be slow. My best run 11.02@129.9mph was with 1.79 60', that's almost a 1.8 which normally would be a much slower ET than 11.02. You should shift from 1st to 2nd as soon as the tires catch traction in 1st, regardless of RPMs. You want to try to stay in your 1:1 gear as long as possible(4th). So the quicker you can get into 4th without falling off the powerband, the quicker ET+mph you will run.
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