26 if you want low end tight tracks and 28 for high speed stuff
is the d slide really that much better? Im still trying to bebate taking the 26mm off becuase its so tourqey, have you guys had trouble jetting them? and what jetting did you guys end up with, Thanksibmike13 said:Never a flat slide! if your going to run a 28mm make it a D slide 100 times better!