its pretty sinple. your cam is the brain to your engine. with oug vehical weight and cam specs this is a pointless topic if your running a bullshit street cam 4.56s are pointless if your running a monster thats looking for 8000 rpm its a different story.

I suggest you evaluate what you WANT out of the car and decide what cam IE brain your using as your carb , fuel system , converter , gears and tires will be based on this.