Whiplash cam in Canada?

My friend's not interested in buying new pistons as we've already assembled the short block using stock replacement ones. He wants the nice lope without having to run higher comp. pistons (and the higher octane...read; more expensive...gas). I don't know that much about Hughes cams which is why I'm asking questions to help us both learn.
what block he have what year? 360 340?? big diff not much info . what's the point of a loppy cam if the only thing he lopes is the mule ?why worry about gas prices , enjoy running gas engines while you can f the cost you'll be driving electric or something else in the next 7 years