That was 3rd gear (1:1). 4th gear is overdrive. This Z06 was converted to an automatic for drag racing, and it is amazing. sub-1.5 sec 60' on the stock rearend.
LS7 started and driving on 8/28. All engine work done by Xtreme Auto.
Corvette C6Z06 Revving - Cam, Headers and Exhaust
The second car in the video is Josh's old turbo Civic with 620whp doing a little burnout.