Strange cam specs

If the measuring technique is accurate, it is a reverse pattern cam [ less exh duration ]. I have been using them for 25 yrs...
More & more people are using them, or pseudo RP cams by using std cams with lower ratio rockers on the exh. Jon Kaase won the engine masters contest with a 246/238 @ 050 RP cam in a 400 Ford that made 660 hp.
Some turbo cams are also RP.
No power. Could be many things...