If you're serious about bracket drag racing where consistency is more important than speed, then yes an auto can be a better option if it's built properly. Road racing, then a manual is the only way to go. And if we're talking stock transmissions (any kind of racing), manuals are typically faster. Manuals are also typically more durable.
All NHRA Pro classes use manual transmissions, although they are clutchless and air actuated so they are essentially automatics speaking strictly from a driver's perspective. But mechanically, they are still manuals.
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