TommyO,
I doubt you will see bottom end on the 260 cam with a 95". Look at the overlap / duration on the cam. That cam should run great from 3200 - 6200.
Have they tried advancing the timing down low 1500 - 2250 rpm and leaning it up a bit there. Hesitation while it can be from the cam can also be from being to rich or the timing being to retarded. It only takes a couple of points 2/3 pts and you may see a big difference. Also when they did your dyno how much timing did they add at 100 percent throttle from 3000-6000 rpm?
I forget now if you have a race tuner or not, if you do there are easy ways to figure out what kPa your at by logging the data and being able to see if the hesitation is really in the cam or the tune.