225 @ 50 cam in 318 //6200 rpm??

i have that same cam on the shelf (new). it only lists the duration @ 50, but i wanted to know the "seat to seat" duration so i had jerry at schneider racing cams profile it.that cam has a ton of advertised duration... 292*....and a late intake closing point.the same cam is in my old speed pro book as well. p/n cs178r. power band of 2800-6000.