I thought they came with a tunnel shaped for a 148 only also, but it sounds like he found a way?Correct me if I'm wrong but I was under the impression that you can't physically fit a 155 into the older xfs/xfr..?
Yes the ride plate touches the bottom of the pump flange but only rests there.I will say you may have clearance issues with the ride plate. But you can grind out a hole so it's not touching.