For us we have gained a few whp but, for the most part it just shifted the power band a bit.
Now on my car for some reason the car did not change peformance in any way with the SR16 cams. It just would not react to cam gear settings. Not sure why. Now with a few of the local guys they saw some HP increases and you could tell where the power band shifted.
Pretty much with the SR16 cams the basic setting that has worked best for us is 0 intake -2.5 exhaust.