Theoretical cam question

If you were trying to squeeze a little more for some kind of competition then maybe depending on the results.
But for street driving, even with the odd track time, going over around 270 degrees starts trading bottom end for top end power that your engine will rarely see, in most driving circumstances you'll have a slower car. There two main ways to increase power cam and heads, in classes that demand stock heads you'll see them use crazy amounts of duration and compression to squeeze every last amount of flow potential. But where you can use any heads you want, that's the better alternative to make power but obviously more expensive but gains are a lot higher to.