Sorry, I have to dis-agree here. With a big cam, there is a lot of things to think about.
1. It is much harder to get a good tune, that makes drive ability what it should be. I am not saying it can't be done, but unless your tuning it yourself, it's REALLY, REALLY hard to find a tuner who cares enough to do what it takes, to get the off idle tip in crisp, and right, as well as decel.
2. A big cam will shine on the dyno, and may run a better # at the track, but on the street, a smaller cam will have better under the curve power, feel faster, and drive better. Your just not going to spin a street car to 7k enough to make it worth it IMO.
3. A big cam is harder on parts, AND requires MORE parts, to make them work. With a big cam, you need steeper gears, because it's not going to have the low end torque a smaller cam will have at the lower rpm's. Along with gears, you really need a converter if your auto. Springs are a wash, because everyone as a general here, should be using tooley .660 springs, best buy for the $, but stock heads just don't flow well enough for a "big" cam, so again, more $.
Big cam's does not mean faster, and you don't need a big cam for thump, if thats what you really want.
I agree that a big cam can be run, but there isn't a lot of need for it IMO. I guess, it really depends on what you call big, and what you consider tolerable in drive ability. One of my friends has a Tick SNS stg3 in a 01 Camaro SS 6spd car. It's driveable for sure, and we have tuned on it a bunch. It runs GOOD for a cam/exhaust/gears car, but again, it has to be spun to 7k. His wife hates the car, and while not apples to apples, my truck is just as fast, 60 ft slower, and is WAY more drive able, and not just because it's a auto. Once I get my suspension right, it will be faster than his big cam car that is a 6spd.