longer upper 4 bars vs short

[GRTLRBITE]

Our GRT was holes to run inch longer upper bars 18" vs standred 17 bars . what would this do to the car? I see rocket runs 18 " bars for there top bars.

[poppy]

Good question, I was told by GRT that on the left side it will help with traction farther down the straight and on the right side it will help on rough tracks. Joe also said with the longer bar on the left side you run the frame mount 1 or 2 holes higher to get more forward drive.