It's obviously to soon to sing the high praises of Valero...he hasn't fought enough and more importantly he hasn't fought game opponents. However, there is no denying he has KO power. The only reason i wouldn't completely dismiss him against Pac, is because Pac's style allows him to get hit...and i'm not sure if Pac could take huge punch from a naturally bigger guy with big power. But most likely, Pac's speed and experience would easily prevail.