Carb on wrong side vs cabling - any advice or pics?

Im about to swap over the carb on the GT186 to the "wrong" side, mainly as the right side manifold means using a shorter s3 shock on the S2 and Im not liking it.
So, my main issue seems to be on fitting, where's the rear brake cable go? behind the manifold or underneath?
So, my main issue seems to be on fitting, where's the rear brake cable go? behind the manifold or underneath?