need gear help asap

[bobracing32]

im running a 543 and need more speed off the corner do i go to a 67 or 83

[circle dirt]

Do have room at the end of the straight for more rpms? If so , jump up a gear. More gear will get off the corner better but hurt top end depending on the track size

[DaveBauerSS6]

Agreed, go as high as you can. Consider the components in the motor, a chip if you are limited, and if the motor is pulling at the end of the straight.
Are you getting on the gas earlier than anyone else? If not , you need to work on setup.