Maybe, but I'd say that would be a rarity unless the cam was a new billet (or hard welded) and not a regrind.
Look at the following reground cam compared to a stock one. Note the massive reduction in the base circle to gain additional lift.
The lifter would drop down the block a fair bit reducing preload, needing the base of the rocker pedestals to be shaved. Obviously a shaved head would help close the gap, but I don't think anyone is going to be shaving a head by that much.