someone already said it but call you favorite cam manufacturer. or a couple. compare, watch some engine masters and see how those cams lay out with your new found intelligence.
Id personally look into something along the lines of the comp extreme energy or comparable. Unfortunately i think youll have to settle with just mediocre giggity machine, albeit everyones seat of the pants dyno are non comparable. anyways its a spider injected vortec 5.7. Without a ton of changing and tuning your gonna find limits the easy way or hard way.
Dont forget the trans, the 60e isnt gonna be shy to tell you its not fond of abuse or more power going into it. "bigger"cam means more converter and better parts etc etc.