A quick look at the advertised and 0.050" duration specs on the lunati voodoo cams of both the Chev and Mopar small block indicate the ramp rates are identical.
Exactly. The only off the shelf MoPar specific lobes I know of are from Hughes and the Comp nostalga grinds. There may be others, but I don't think so. The MP cams are *supposed* to be, but they are pretty old tech now. Still work well, though.