what gear to run for las vegas duel in desert?

[fast hot rod]

dont know what gear to run in vegas? have around 550 to 600 hp

[calif54]

5.43 to 5.14 depending on the size of motor. I ran 5.43 with a very well built 377 a few years ago and it worked great. You may even be able to run more gear as the track slicks off and slows down, but this should put you in the ball park.