Hughes cam?

P4529343, 284/284 adv dur, 76 overlap, .528 lift,28/32 lash, 104 center line, 102 installed CL, P3412068 valve spring
From 1992 MP Parts book.
The Victory library has it listed at those same specs but the .050" duration is 221 instead of 241 like all the other .528 cams. I think the Victory info is a misprint.