Custom ground camshaft, low power

Those cam specs look like old Cam Dynamics energizer cam I use to put in 4x4's back in the 70's. [email protected] cam in a 440 would bring up a late model 440's hp rating to a 1970 375 hp rating... a cam with 228@50 is not going to set the world on fire.
How much power did you expect or were told it would make ??