your going to run 6 tooth 3.5 pitch drivers I assume?
If so due to the slightly smaller drivers it will drop it back, and a factory 155 is actually a 15.44 and the 154 3.5 pitch is exactly a 154. so you should be golden for adjustment range.
I installed the 156" conquer 280 3" pitch with avid 7 tooth drivers on stock rails (155"/2.6 track) without any issues. I know it is not the exact one you were asking about. But you should be fine.