Personally, I don't think there's anything wrong with just wanting a little lope.
These cars are slow as all get out if we're honest and the appeal of them for most is that they look good and sound good with a few simple modifications you've got the perfect 90s hot rod to cruise in.
It's a slippery slope when you start saying (well if you're gonna do this you might as well go ahead and ____) ask me how I know...
If you're going to put a camshaft in it, you'd be better off putting better heads on it. The e7s are a horrible head. But if you put heads on it you're going to need to put a new intake on it, the stock one is also horrible.
But if you're going to pay $2,000 for a nice set of aluminum heads and more for a fancy new intake it might as well go on a fresh motor right? Makes sense, don't want to waste your money.
So now we're gonna slap a fresh bottom end together. And if we're doing that we might as well go 351w based, it's all the same effort might as well go with the better motor.
Etc etc, next thing you know your cars sitting in the garage torn apart because you're still putting the cash together for your new 408w.
I guess my mad mike-ish rambling sums up to:
A cam swap is easy. It's also a good experience to have under your belt. It's relatively cheap when you compare it to all the other mods people do.
Buy new springs, pushrods, gaskets and whatever letter cam or TFS typical ots cam your heart desires. It's not like you can't pull the springs back off the heads and throw the e7s in the trash.
There are absolutely better camshafts out there, but there are also better everything else.