Welcome to the forums!
I think ideally for a drag race you would do an “all speed; no torque” gear ratio. A great resource would be “Catalogue of Drive Gearings”
Obviously this is geared towards competition robots and many of these designs utilize blue motors, but I think you could make it work. For speed, I think it would be extremely helpful to maximize your speed (which you can calculate in in/sec) through a) reducing friction (bearing flats), b) finding a gear ratio geared towards speed, and c) ensuring that your dragster is as light as possible.
I hope this helps!